World Geographical Records

Mauna Kea in Hawaii is the tallest mountain in the world when measured from base to peak at over 10,000 meters. Most of it is underwater. Mount Everest is the highest above sea level (8,849m), but Mauna Kea is tallest overall. The Himalayas is a mountain range, not a single mountain.

The Pacific Ocean is the largest ocean on Earth, covering about 63 million square miles - larger than the Atlantic, Indian, and Southern Oceans.

The Mariana Trench in the western Pacific Ocean is the deepest point in Earth's oceans, reaching approximately 36,000 feet (about 11,000 meters) at its deepest point, the Challenger Deep.

The Pacific Ocean contains more islands than any other ocean or sea - estimates range from 25,000 to 30,000 islands. This includes the Indonesian and Philippine archipelagos, thousands of islands in Polynesia, Micronesia, and Melanesia, making it far richer in islands than the Caribbean or South China Sea.

The Arctic Ocean is the smallest and shallowest of the five major oceans, covering approximately 14 million square kilometers. By comparison, the Southern Ocean (around Antarctica) is about 20 million sq km, while the Atlantic, Indian, and Pacific are all larger still.

The Mediterranean Sea is approximately 2.5 million sq km, making it the largest sea by area. The South China Sea (around 3.5 million sq km) is sometimes classified differently, but among options given, the Mediterranean is traditionally recognized as the largest sea. The Caribbean and Bering Seas are smaller.

In 2005, scientists using a submersible discovered a new active underwater volcano near Vailulu'u in the Pacific Ocean. This discovery helped researchers understand underwater volcanic activity and hydrothermal vent formation in the region, adding to the knowledge of Pacific Ocean geology.

The Caspian Sea is the only true lake among these options, not connected to any ocean. It's an enclosed inland body of water surrounded by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan. The Caribbean Sea, Mediterranean Sea, and Bering Sea are all marginal seas connected to the world ocean system. The Caspian is also the largest inland body of water on Earth by area.

The Nile River in Africa is traditionally considered the world's longest river at approximately 6,650 km, though recent studies suggest the Amazon might be longer depending on measurement methodology.

The Amazon River flows eastward across South America and empties into the Atlantic Ocean. The Mediterranean and Gulf of Mexico are on different continents, while the Gulf of Chihli is in East Asia.

Hwang Ho (Yellow River) is called the "sorrow of China" because of its frequent, devastating floods that have killed millions and destroyed farmland throughout Chinese history. The name reflects the river's destructive nature.

The Ganges-Brahmaputra Delta (also known as the Ganges Delta) in Bangladesh and India is the world's largest river delta, covering approximately 105,000 square kilometers. It forms where the Ganges, Brahmaputra, and Meghna rivers empty into the Bay of Bengal.

Salto Angel Falls (Angel Falls) in Venezuela is the highest waterfall in the world with a total height of 979 meters (3,212 feet). It was named after Jimmy Angel, the American aviator who first flew over it in 1933. Niagara Falls is famous but not the highest.

The Trans-Canada Highway is one of the longest highways in the world. The other options (South America, North America, Canada) are geographic regions, not highway names, making them incorrect answers to a question about highway names.