What is the capital city of the United States?

Explanation

Washington, D.C., officially known as the District of Columbia, serves as the capital of the United States. Established after the American Revolution to function as the nation's government center, it was named in honor of George Washington, the first U.S. president and a key Founding Father. Situated along the Potomac River between Maryland and Virginia, Washington is home to the federal government and numerous international organizations. It is also a major political hub and attracts over 20 million tourists each year.