What are three major landmarks?

The Great Wall of China is a series of fortifications that were built across the northern borders of China to protect the country from invaders. The wall is over 21,000 kilometers long and is made up of stone, brick, and earth. It is one of the most famous landmarks in the world and is a UNESCO World Heritage Site.

2. The Taj Mahal

The Taj Mahal is a mausoleum located in Agra, India. It was built by the Mughal emperor Shah Jahan in memory of his wife, Mumtaz Mahal. The Taj Mahal is made of white marble and is inlaid with precious stones. It is considered to be one of the most beautiful buildings in the world and is a UNESCO World Heritage Site.

3. The Eiffel Tower

The Eiffel Tower is a wrought iron lattice tower located in Paris, France. It was designed by Gustave Eiffel and was built in 1889 for the World's Fair. The Eiffel Tower is 324 meters tall and is the most visited paid monument in the world. It is a UNESCO World Heritage Site.