George Washington never lived in Washington DC because the White House was completed one year after his death, and the second American President John Adams was the first person to live there.
Andrew Jackson's statue in the Lafet Square from the White House is partly made from British guns, which were taken in the war of 1812.
The Library of Congress is the world's largest library with a collection of more than 160,000,000 items.
The ship used by astronauts on the Moon was made by Boeing, which is the world's largest aircraft maker and its office is in Washington DC.
MLK Memorial is a statue of the famous American civil rights leader, Martin Luther King Jr., built in China by sculptor Lei Yixin. It is made up of 59 pieces of Chinese granite and it was assembled in China and sent to the states.
The Washington Monument was the world's tallest structure, when it was completed in 1884. But soon it was defeated by the Eiffel Tower.
In the basement of the Capital only operates a private metro system for staff members.
At the Air & Space Museum of Washington there is a rock from the Moon which is on display for visitors.
Cherry trees which beautify the streets in Washington DC, when they bloom in spring, were actually imported from Japan during the 20th century and were "gifts of friendship" to the people of the United States.
Washington, DC is the center of all 3 main branches of the United States - Congress, President and Supreme Court.
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