Studied by 80 peopleNiagara Falls
one of the world's most beautiful waterfalls found in both Canada and the United States
Grand Canyon
largest canyon in the world, in Arizona
Nile River
The world's longest river, which flows northward through East Africa into the Mediterranean Sea
Amazon River
A long river in northern South America.
Amazon Rainforest
the largest rain forest in the world, located in South America
Mississippi River
A major North American river and the chief river of the United States, longest river in the U.S.
Angel Falls
world's highest waterfall, in Venezuela South America
Victoria Falls
Africa's largest waterfall
Mt. Everest
highest mountain in the world, in Asia
Mt. Fuji
Japan's most famous landmark
Uluru (Ayers Rock)
a large sandstone rock formation in Australia.
Caldera of Santorini
Bay in Greece made from a collapsed volcano
Great Barrier Reef
the largest coral reef in the world, in Australia
Galapagos Islands
Chain of islands near South America with many unique animals
Arches National Park
Utah park containing hundreds of sandstone spans
Old Faithful
most famous geyser in Yellowstone National Park, Wyoming/Montana
Redwood National Park
state park inCalifornia, World's biggest trees.
Kilauea Volcano
A volcano in Hawaii that is the most active in the world.
Giant's Causeway
Northern Ireland
Land formation of columns made from volcanic lava.
Sahara Desert
the world's largest desert (3,500,000 square miles) in northern Africa
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