A type of border between states that is created by mountains, rivers, or other naturally occurring divisions.
What is a Natural Border?
This "Great" geographic feature in North America consists of five interconnected freshwater lakes containing 21% of the world's surface fresh water.
What are the Great Lakes?
This ancient stadium in Rome was once used for gladiator contests and could hold over 50,000 spectators.
What is The Colosseum?
This white marble mausoleum in Agra, India, was built by Emperor Shah Jahan in memory of his favorite wife.
What is the Taj Mahal?
This longest river in the world flows northward through northeastern Africa and was the lifeblood of Ancient Egypt.
What is the Nile River?
Because it receives less than 10 inches of precipitation per year, this frozen continent is technically classified as the world's largest desert.
What is Antarctica?
This map shows elevation changes.
What is a topographic map?
This man-made waterway connects the Atlantic and Pacific Oceans, allowing ships to avoid sailing around Cape Horn.
What is the Panama Canal?
Found primarily in Norway, these long, narrow, deep inlets of the sea are carved out by glaciers.
What are Fjords?
Often called the "Rain Shadow Desert," this region is Asia's largest desert and is famous for its extreme temperature swings and dinosaur fossil discoveries.
What is the Gobi Desert?
This city is considered a holy site for Judaism, Christianity, and Islam, and its status remains one of the most contested issues in the region.
What is Jerusalem?
This massive living structure off the coast of Australia is the world's largest coral reef system.
What is the Great Barrier Reef?
A farming method involving cutting down trees and vegetation in a forested area, allowing them to dry, and then burning them to create a nutrient-rich ash layer that fertilizes the soil for crops.
What is Slash and Burn Agriculture?
This mountain range stretches over 4,000 miles along the western coast of South America.
What is the Andes Mountains?
This economic and political union of 27 European countries allows for the free movement of people and goods.
What is the European Union (EU)?
This is the most populous country in the world, recently surpassing China in total inhabitants.
What is India?
This 120-mile man-made waterway connects the Mediterranean Sea to the Red Sea, effectively separating the African continent from the Sinai Peninsula.
What is the Suez Canal?
This traditional name for the Australian interior describes the vast, remote, and arid lowlands that make up most of the continent.
What is the Outback?
This country contains the latitude and longitude 15S, 45W.

Where is Brazil?
Located in Chile, this is known as the driest non-polar place on Earth, where some areas have never recorded rain.
What is the Atacama Desert?
This term, named after a specific mountainous peninsula in Southeast Europe, describes the process of a region breaking down into smaller, often hostile states.
What is Balkanization?
These seasonal winds bring heavy rains to South Asia and are crucial for the region's agriculture, especially rice.
What are Monsoons?
This transition zone south of the Sahara is suffering from desertification, where fertile land is turning into desert.
What is the Sahel region?
This "city-state" at the tip of the Malay Peninsula is one of the world's wealthiest nations and a global hub for shipping and finance.
What is Singapore?
A linear feature where two tectonic plates move away from each other, causing tensional stress that breaks the lithosphere
What is a divergent boundary?
This country resides Pacific coastline of South America.

Where is Peru?
This 2,300-mile river is the longest in Europe; it flows through central Russia and empties into the Caspian Sea.
What is the Volga River?
Once the fourth-largest lake in the world, this body of water has nearly disappeared after the Soviet Union diverted its feeder rivers to irrigate cotton fields in the desert.
What is the Aral Sea?
Located at the southern tip of the continent, this "Rainbow Nation" is famous for its history of ending Apartheid and for being the only country with three different capital cities. 
What is South Africa?
These are the indigenous Polynesian people of New Zealand, known for their unique "Haka" dance and their historical treaty with the British known as the Treaty of Waitangi.
Who are the Maori?