Eiffel Tower, Paris
The Eiffel Tower is a wrought-iron lattice tower built in 1889 for the World's Fair. It stands about 330 meters tall and remains one of the most visited paid monuments in the world.
Great Wall of China
The Great Wall is a series of fortifications stretching over 21,000 kilometers across northern China. Built over centuries, it was designed to protect against invasions and is now a UNESCO World Heritage Site.
Machu Picchu, Peru
Machu Picchu is a 15th-century Inca citadel set high in the Andes Mountains. It is known for its dry-stone walls and terraces, and it was designated a UNESCO World Heritage Site in 1983. Learn more at UNESCO World Heritage Centre.
