Lakes
This large freshwater lake in the Sierra Nevada Mountains is known for its beaches and ski resorts.
Lake Tahoe
This medieval stone closed-spandrel segmental arch bridge is noted for the shops built along it, with butchers, tanners, and farmers initially occupying the shops, but jewelers, art dealers, and souvenir sellers being the present tenants.
Ponte Vecchio
This major north-flowing river in northeastern Africa flows into the Mediterranean Sea, and is the longest river in Africa and has historically been considered the longest river in the world, though this has been contested by research suggesting otherwise.
Nile
This dinosaur had a massive skull balanced by a long, heavy tail, and short but unusually powerful forelimbs relative to its large and powerful hind limbs.
Tyrannosaurus
This sea of the Atlantic Ocean in the tropics of the Western Hemisphere has the world's second largest barrier reef, the Mesoamerican Barrier Reef.
Caribbean Sea
This lake is the largest freshwater lake in the world by surface area and the third largest by volume, holding 10% of the world's surface fresh water.
Lake Superior
Opened in 1883, this suspension bridge is the southernmost of the four toll-free vehicular bridges connecting Manhattan and Long Island.
Brooklyn Bridge
Rising in the Rocky Mountains of the Eastern Centennial Mountains of Southwestern Montana, this river is the longest river in the United States.
Missouri River
This dinosaur had a long tail and an enlarged sickle-shaped claw on each hind food, which is thought to have been used to tackle and restrain prey, and can be distinguished from similar dinosaurs by its long and low skull, with an upturned snout.
Velociraptor
This sea lies between Europe and Asia, bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine, and is supplied by major rivers, principally the Danube, Dnieper, and Don.
Black Sea
Straddling the border between Peru and Bolivia in the Andes Mountains, this lake is one of South America's largest lakes and the world's highest navigable body of water.
Lake Titicaca
This double-decked suspension bridge is the world's busiest motor vehicle bridge, carrying over 103 million vehicles in 2016.
George Washington Bridge
This river in South America is the largest river by discharge volume of water in the world, and the disputed longest river system in the world.
Amazon River
This dinosaur was characterized by the distinctive kite-shaped upright plates along its back and spikes on its tail.
Stegosaurus
This seawater inlet of the Indian Ocean lies between Africa and Asia, its connection to the ocean in the south through the Bab el Mandeb strait and the Gulf of Aden, with the Sinai Peninsula, Gulf of Aqaba, and Gulf of Suez to its north.
Red Sea
This lake is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea, and is bounded by Kazakhstan to the northeast, Russia to the northwest, Azerbaijan to the southwest, Iran to the south, and Turkmenistan to the southeast.
Caspian Sea
This suspension bridge, opened by Edward, Prince of Wales and Alexandra, Princess of Wales in 1894, was constructed to give better access to the East End of London, which has expanded its commercial potential in the 19th century.
Tower Bridge
One of the principal rivers in the southwestern United States and in northern Mexico, this river originates in south-central Colorado and flows to the Gulf of Mexico.
Rio Grande
This dinosaur had a long, thin neck and a small head adapted for a herbivorous lifestyle, a bulky, heavy torso, and a long, whip-like tail.
Brontosaurus
This marginal sea of the South Pacific Ocean is situated between Australia and New Zealand, and is informally referred to in both places as "the Ditch", comparable to referring to the North Atlantic Ocean as "the Pond".
Tasman Sea
This lake is one of the African Great Lakes and is Africa's largest lake by area, the world's largest tropical lake, and the world's second largest fresh water lake by surface area.
Lake Victoria
This ancient Roman aqueduct bridge built in the first century AD to carry water over 30 miles to the Roman colony of Nîmes is the tallest of all Roman aqueduct bridges, as well as one of the best preserved, and was added to UNESCO's list of World Heritage sites in 1985 because of its exceptional preservation, historical importance, and architectural ingenuity.
Pont du Gard
This river is the second longest river in Africa, the second largest river in the world by discharge volume, and the world's deepest recorded river.
Congo River (Zaire River)
Brachiosaurus
At around 1.4 million square miles, this sea is the largest sea in the world, bordering China, Philippines, Malaysia, Brunei, Indonesia, Singapore, and Vietnam.
South China Sea