The Eiffel Tower in Paris was once considered a useless monument and was almost torn down after the world exhibition ended.
The Louvre Museum in Paris was once a royal palace before being converted into a museum in 1793.
Empire State Building in New York has an exclusive elevator for the President of the United States.
Burj Khalifa in Dubai is the tallest building in the world, reaching an altitude of 828 meters.
Pisa Tower in Italy leather about 4 degrees due to a weak foundation.
The Sydney Opera Building in Australia was originally planned to have a dome -shaped roof, but was later converted into a design like a sailing ship inspired by the shape of the port where the building was established.
Buckingham Palace in London has 775 bedrooms, 19 dining rooms, 52 living rooms, 188 bathrooms, and 92 offices.
The forbidden city in Beijing, China, is the largest palace complex in the world and used to only be accessed by the Emperor and his family.
Colosseum in Rome used to be used for gladiator matches and other entertainment events that often involve battles between humans and animals.
The Big Ben Clock Tower in London is actually not the official name of the building, but the name for the big bells in it. The official name of this building is the British Parliament Building.
