Did you know?
1. The Great Wall of China
The Great Wall of China, one of the most iconic structures in the world, is over 13,000 miles long! It took more than 2,000 years to build and can be seen from space under the right conditions.
2. The Hoover Dam
The Hoover Dam contains enough concrete to build a two-lane highway from San Francisco to New York City. It took 3.25 million cubic yards of concrete to construct, which is enough to pave a standard highway stretching from coast to coast in the United States.
3. Dubai’s Burj Khalifa
Standing at a staggering 2,717 feet, the Burj Khalifa in Dubai is the tallest building in the world. It has 163 floors and is so tall that people on the top floors can see the sunset several minutes after it sets at ground level.
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