The Eiffel Tower is in Paris, France. It is 324 meters tall and was built for the World's Fair in 1889. It stands for French engineering. The Great Wall of China, which is more than 13,000 miles long, was built to protect China from invaders and is a symbol of the country's strength. France gave the Statue of Liberty to the United States as a gift. It stands for freedom and democracy. Ancient Rome's Colosseum, an arena, shows how well the Romans...