Before the advent of the highway, the railway, and the airplane, the rivers were the major routes used for trade, migration, agriculture, and the exchange of cultures. It is a fact that many of the earliest human settlements were founded near the rivers, where the fertile floodplains provided the support for agriculture, allowing people to live in the often inhospitable environments provided by the rivers. Even today, the longest rivers in the world are the major ecological and economic routes on the planet. From the Amazonian rainforests to the African plains, from the Siberian snows to the Middle Eastern deserts, the longest rivers are the major routes that cover hundreds of kilometers and several nations. Here are the 10 longest rivers in the world, each of them notable not just for their length but for their importance to the development of the surrounding lands.

Nile – 6,650 km

The longest river in the world, the Nile River, runs north through northeastern Africa before emptying into the Mediterranean Sea. The river travels through 11 countries, including Uganda, Sudan, and Egypt, and has sustained human settlement for millennia. Ancient Egyptian civilisation flourished along its fertile banks, where annual floods enriched the soil for agriculture. Today, the Nile is still the lifeline of water supply to Egypt, an oasis of green in a sea of desert.

Amazon River – 6,400 km

The Amazon River runs through Peru, Colombia, and Brazil. The Amazon is the largest river on earth by volume of water, and is the lifeline of the Amazon rainforest. The Amazon River Basin is home to 40 percent of the world’s biodiversity. The river expands during the rainy season, flooding a large part of the rainforest. The Nile is considered longer than the Amazon River, but studies indicate that it is possible that the Amazon River is longer or even longer than the Nile River, depending on how the measurement is taken.

Yangtze River – 6,300 km

Asia’s longest river entirely runs through China. It originates in the glaciers of the Tibetan Plateau and empties into the East China Sea near Shanghai. The Yangtze has been very important to China’s history, culture, and economic growth. The Yangtze River basin is home to a third of China’s inhabitants and is considered one of China’s most fertile agricultural regions. Additionally, it is home to the Three Gorges Dam, which is the biggest hydroelectric power station in the world, emphasizing its role in power generation and flood prevention.

Mississippi – Missouri River System – 6,275 km

The Mississippi River and Missouri River combine to make up the longest river system in North America. The Missouri River originates in the Rocky Mountains, flows into the Mississippi River, which then flows south through the heart of America before emptying into the Gulf of Mexico. This river has been an essential transportation route for centuries and is vital today for transportation of agricultural products such as corn and soybeans. The Mississippi River Basin is enormous, draining 40 percent of the continental United States. This makes it one of the most significant river systems in the world.

Yenisei River – 5,539 km

The Yenisei River flows from Mongolia into Siberia before emptying into the Arctic Ocean. This is one of the largest river systems flowing into the Arctic Ocean. This river plays an essential part in the ecology and economy of Siberia. The river runs through vast forests, wilderness, and rugged territory, making it one of the most scenic river valleys in the world. The river valley has hydroelectric dams and is an essential transportation route because of the lack of roads.

Yellow River – 5,464 km

The Yellow River is also known as the Huang He and has been named the “Cradle of Chinese Civilization.” The Yellow River runs through northern China and is renowned for its rich yellow silt carried from the loess plateau that gives the water its characteristic hue. Throughout the ages, the Yellow River has been synonymous with the rise and fall of civilizations in the region as the floods of the Yellow River have had a significant impact on the fortunes of the region. The Yellow River has been inextricably linked with the rich cultural and agricultural past of China.

Ob-Irtysh River System – 5,410 km

The Ob-Irtysh river system drains the largest basin in Asia. The Irtysh River rises in the mountains of China and flows through Kazakhstan before joining the Ob River in western Siberia and finally emptying into the Arctic Ocean. This massive system passes through vast plains and wetlands and is essential for regional transport, fishing, and hydroelectric power. Its basin contains some of the largest wetlands in the world.

Paraná River – 4,880 km

The Paraná River flows through Brazil, Paraguay, and Argentina and is the second-longest river in South America after the Amazon. It is very important to regional farming and energy production, especially through its Itaipu Dam, which is one of the biggest hydroelectric dams in the world. It is also part of a vast basin that is home to major cities and farming regions in southern South America.

Congo River – 4,700 km

The Congo River runs through the heart of central Africa and is the second-largest river in the world in terms of water discharge, after the Amazon. It is also the deepest river in the world, reaching depths of over 200 meters. It runs through a rainforest and very remote regions of Africa and is a source of transportation for millions of people. It is also a source of hydroelectric power due to its vast discharge.

Amur River – 4,444 km

The Amur River is a natural border between China and Russia before emptying into the Sea of Okhotsk. Unlike other rivers in the Asian region, the Amur River is relatively undammed, with large sections of the river remaining pristine. The river is home to diverse wildlife with unique ecosystems, including the habitats of the Amur tiger and the Amur leopard.

For travellers who live on a vegetarian diet, the world can feel like a puzzle. Menus in many countries still revolve around meat, seafood, or broths quietly simmered with animal stock. Yet there are places where vegetables, grains, and spices are not side dishes but the heart of the cuisine. In these countries, vegetarian travellers don’t have to negotiate with the menu, they can simply enjoy it. Across cultures and continents, some destinations stand out for their deep-rooted vegetarian traditions, innovative plant-based cooking, and easy access to meat-free meals. Here are six of the world’s most vegetarian-friendly countries to explore.

India

It is almost impossible to talk about vegetarian travel without beginning with India. In many parts of the country, vegetarianism is not a dietary or flavour preference but a cultural norm shaped by centuries of religious philosophy and tradition.

Large segments of the population follow vegetarian diets influenced by Hinduism, Jainism, and certain Buddhist traditions. As a result, entire regional cuisines have evolved without meat. Walk into a roadside dhaba or a family-run restaurant and you will find menus filled with dishes built entirely around vegetables, lentils, dairy, and grains. The variety is staggering. North India offers rich paneer curries, dal makhani, and stuffed parathas, while the south celebrates crisp dosas, fluffy idlis, and coconut-based stews. Gujarat and Rajasthan are famous for elaborate vegetarian thalis, platters containing dozens of small dishes that together create a feast of flavours. For vegetarian travellers, India is less about finding options and more about choosing among them.

Italy

Italian cuisine may be famous for its cured meats and seafood, but it also contains one of the richest vegetarian traditions in Europe. At its core, Italian cooking celebrates ingredients rather than excess: ripe tomatoes, fragrant basil, olive oil, and seasonal vegetables.

The most famous vegetarian dish in the world, pizza Margherita, was born in Naples and remains a simple masterpiece of tomato, mozzarella, and basil. Across the country, pasta dishes such as pasta primavera and spaghetti aglio e olio rely on vegetables and herbs for their flavour.

For centuries, Italian households have built everyday meals around gardens, markets, and seasonal harvests, proving that thoughtful cooking and fresh produce can create dishes that feel abundant without relying on meat.

Then there are regional classics: eggplant parmigiana baked with cheese and tomato sauce, creamy mushroom risottos in the north, and rustic vegetable soups in Tuscany. In Italy, vegetarian food never feels like a compromise. It feels like the cuisine itself.

Thailand

Thailand’s food culture is a sensory adventure, bright herbs, fiery chillies, citrus, and sweet palm sugar layered into dishes that feel alive with flavour. While many traditional Thai meals include fish sauce or shrimp paste, vegetarian versions are widely available and increasingly common.

Bangkok, Chiang Mai, and Phuket have thriving vegetarian scenes, supported by Buddhist traditions that encourage flavourful plant-based eating during certain festivals and observances. Tofu stir-fries, vegetable green curries, fragrant basil rice, and vegetarian pad Thai are easy to find at both street stalls and restaurants.

Street food culture plays a major role in this accessibility, with vendors constantly adapting recipes to suit diverse diets, often swapping traditional sauces with soy-based alternatives or simply letting vegetables and herbs lead.

Many markets also serve fresh, flavourful spring rolls, mango sticky rice, and coconut desserts that are naturally meat-free. For travellers who love bold flavours, Thailand proves that vegetarian food can be anything but mild.

Israel

Few countries embrace vegetable-based cooking with as much enthusiasm as Israel. Influenced by Middle Eastern, Mediterranean, and North African traditions, Israeli cuisine naturally leans toward plant-forward meals.

Much of this culinary richness comes from the country’s diverse cultural heritage. Jewish communities that migrated from different parts of the world brought their own food traditions, many of which relied heavily on vegetables, grains, legumes, and herbs. Over time, these influences blended with local ingredients to create a cuisine that feels both ancient and modern.

Seasonal produce plays a central role in everyday cooking. Tomatoes, eggplants, cucumbers, chickpeas, lentils, and fresh herbs appear in countless dishes, often prepared simply to highlight their natural flavour. Olive oil, lemon, garlic and spices such as cumin and za’atar add depth without overwhelming the ingredients.

The streets of Tel Aviv are filled with falafel stands, where crispy chickpea balls are tucked into pita with salads, tahini, and pickles. Hummus, often served warm, drizzled with olive oil and deeply savoury, is practically a national obsession.

Markets overflow with mezze, small plates of roasted vegetables, tabbouleh, baba ghanoush, olives, and fresh bread. Even shakshuka, eggs poached in a spicy tomato sauce, is often served as a vegetarian staple. With its vibrant produce markets and modern vegan restaurants, Israel has quietly become one of the most vegetarian-friendly destinations in the world.

Taiwan

Taiwan might surprise travellers with its remarkable vegetarian culture. Influenced by Buddhist practices, many restaurants specialise entirely in plant-based cooking. Monasteries and temple communities have long shaped local eating habits, encouraging simple, mindful meals built around seasonal vegetables, tofu, and grains rather than meat. In cities like Taipei, vegetarian buffets are common, offering dozens of dishes ranging from braised tofu and stir-fried greens to inventive meat substitutes made from soy or wheat gluten.

Night markets also feature savoury vegetarian noodle soups, dumplings, and crispy tofu snacks. Even traditional Taiwanese cooking often highlights vegetables such as bamboo shoots, mushrooms, and leafy greens. For visitors, Taiwan offers something rare: vegetarian food that is both deeply traditional and quietly innovative.

Ethiopia

Ethiopia’s cuisine tells a story of faith and community, and vegetarian travellers benefit directly from it. The Ethiopian Orthodox Church observes frequent fasting periods during which meat and dairy are avoided, giving rise to an extraordinary array of plant-based dishes.

Meals are served on injera, a soft sourdough flatbread that acts as both plate and utensil. On top of it sit colourful stews made from lentils, chickpeas, potatoes, cabbage, and spiced vegetables.

Dishes like shiro (a rich chickpea stew) and misir wat (spicy red lentils) deliver deep, slow-building flavours thanks to the country’s signature spice blend, berbere. Eating Ethiopian food is also a communal experience, with diners sharing from the same platter. For vegetarian travellers, it offers not just a meal but a cultural ritual.

It sounds like a simple trivia question. In reality several lakes, seas, and ponds compete for the title of “saltiest body of water,” depending on how scientists measure salinity.

The average ocean contains about 3.5 percent salt. Some hypersaline lakes contain 10 times that amount—or even more more—because water evaporates faster than it flows out, leaving mineral salts behind.

Below are some of the saltiest bodies of water on Earth.

1. Don Juan Pond: 44%

Don Juan Pond in Antarctica is widely considered the saltiest body of water on Earth. Located in the McMurdo Dry Valleys of the Upper Wright Valley near the Asgard Range mountains, the shallow pond can reach a salt concentration of about 44 percent.

That extreme salinity keeps the water liquid even when temperatures drop below -50 degrees Celsius. Most of the brine is composed of calcium chloride, which prevents ice from forming even in the harsh Antarctic air.

Scientists study Don Juan Pond because environments with such intense salinity may resemble conditions on Mars. Evaporation and salty soil in the surrounding valley continually feed mineral salts into the pond.

2. Gaet’ale Pond: 43.3%

Gaet’ale Pond in Ethiopia is another contender for the saltiest lake on Earth. Located in the Danakil Depression of the Afar Region, the small thermal pond has recorded salinity levels around 43.3 percent.

Unlike icy Antarctica, this environment is extremely hot. Water temperatures can reach 50 to 55 degrees Celsius (122 to 131 degrees Fahrenheit). The brine contains high levels of calcium chloride and magnesium chloride, giving the water its unusual chemistry.

3. Lake Vanda: ~35%

Lake Vanda sits in Antarctica’s Wright Valley and also ranks among the saltiest lakes on the planet. Some deep layers of the lake contain salinity levels close to 35 percent.

The lake remains partly covered by ice year round, yet salty water accumulates beneath the surface. This layered structure creates unusual conditions where extremely saline water sits beneath fresher water.

4. Lake Assal: ~35%

Lake Assal in Djibouti is one of the saltiest lakes outside Antarctica. Located in the Rift Valley region of East Africa, the lake has a salinity of roughly 35 percent.

Its shoreline lies far below sea level and intense evaporation concentrates salt in the remaining water. The surrounding landscape is stark and white with mineral deposits left behind as water disappears.

5. The Dead Sea: 34%

The Dead Sea in the Middle East is among the most famous hypersaline lakes in the world. Positioned between Jordan and Israel in the Jordan Rift Valley, it sits about 430.5 meters below sea level—the lowest point on land.

Its salt content is about 34 percent, nearly 10 times saltier than the ocean. Because the water is so dense, people can float easily on the surface.

The Dead Sea is also known for mineral-rich mud and water that contain sodium chloride and other salts. These minerals have drawn health tourism and scientific research into possible skin and respiratory benefits.

6. Great Salt Lake: 27%

The Great Salt Lake in the western United States is one of North America’s most saline bodies of water. Its salinity levels fluctuate widely depending on rainfall and water flow.

In wet years the lake may contain about 5 percent salt, but in dry periods it can rise to roughly 27 percent. Declining water levels have recently increased salinity in some parts of the lake.

7. Laguna Cejar: ~25%

Laguna Cejar in Chile is a highly saline sinkhole lake located in the Atacama Desert. Like the Dead Sea, its high salt content makes it easy for visitors to float on the water’s surface.

The surrounding desert landscape, dry air, and limited freshwater inflow allow evaporation to concentrate salt in the lake.

8. The Red Sea: 4%

The Red Sea is not a lake but one of the saltiest seas connected to the global ocean. Its salinity averages about 4 percent, higher than typical ocean water.

Hot temperatures, little rainfall, and limited freshwater rivers flowing into the sea help keep salt concentration high. Despite this salinity, the Red Sea still supports abundant marine life and coral reefs.

Hypersaline Antarctic Ponds

Several other hypersaline lakes and ponds exist across Antarctica’s McMurdo Dry Valleys. These small bodies of water form where snow melt mixes with extremely salty soil.

Because they have no outlets, evaporation leaves behind concentrated brine. These environments often contain only specialized microorganisms such as halophiles and extremophile bacteria.

Why Hypersaline Lakes Form

The saltiest lakes on Earth usually appear in closed basins where water cannot flow out to the ocean. Rain, snow, and small streams bring dissolved minerals into the basin.

As water evaporates, salt stays behind and builds up over time. The result is a hypersaline lake with extremely high density water where only specialized life can survive.

Researchers often study these lakes because their harsh chemistry may mirror conditions on other planets. Understanding how microbes survive in salty water on Earth could help scientists search for life elsewhere in the world.

Solo travel is booming in 2026, with more destinations prioritising safety, affordability and meaningful cultural experiences. From beginner‑friendly countries to adventure hotspots and digital‑nomad favourites, here’s a look at the places offering the most rewarding trips for travellers exploring the world on their own.

Costa Rica is a safe, beginner friendly destination with rainforests, beaches, and wildlife. Getting around is easy with buses and shuttles linking places like La Fortuna and Monteverde. Group tours and social hostels make meeting people simple. English is widely spoken. It is not the cheapest, but ideal for solo travellers seeking adventure with minimal planning stress.

Prague is a popular solo travel destination known for its compact layout and striking architecture. The Old Town, Charles Bridge, and Prague Castle are easy to explore on foot. Public transport is reliable and affordable. Hostels and walking tours make it easy to meet others. It is generally safe, though pickpocketing can occur in crowded areas. Costs are moderate compared to Western Europe.

Japan is one of the safest and most efficient countries for solo travel. Cities like Tokyo and Kyoto are well connected by reliable transport. Dining alone is common, and accommodation often caters to solo guests. English signage helps, though language barriers remain. Costs vary. It suits travellers seeking a structured, low stress trip with rich cultural experiences.

Uruguay offers a relaxed pace and is one of South America’s safest countries. Montevideo and Colonia del Sacramento are easy to explore alone, with coastal views and cultural stops. Transport is straightforward, though costs are higher than expected. Spanish helps but is not essential. It suits solo travellers looking for a calm, uncrowded destination with a coastal focus.

Estonia is compact, safe, and easy to navigate, making it ideal for solo travellers. Tallinn offers medieval charm with modern infrastructure, while forests and small towns provide quiet escapes. Public transport and digital services are efficient, and English is widely spoken. Less crowded than much of Europe, Estonia suits travellers looking for calm, simplicity, and a mix of culture and nature.

Norway is ideal for solo travellers seeking safety and dramatic landscapes. Fjords, scenic trains, and outdoor activities are easy to access via reliable transport. English is widely spoken, and the country is very safe. Costs are high, so planning is key. Best for independent travellers who prioritise nature, efficiency, and stunning views over budget travel.

Vietnam is affordable, lively, and popular with solo travellers. From Hanoi to Ho Chi Minh City, it offers diverse landscapes, street food, and strong hostel culture. Transport is cheap and widely available. Meeting people is easy through tours and shared stays. Traffic and petty theft require caution. Ideal for those seeking a social, fast paced travel experience.

Finland offers a peaceful, safe environment with strong infrastructure. Helsinki blends culture and nature, while Lapland is known for northern lights and winter activities. English is widely spoken, and transport is reliable. It is relatively expensive and less social, but ideal for solo travellers seeking quiet, independence, and outdoor experiences without complicated logistics.