District of Columbia (D.C.)

The District of Columbia (D.C.) is the capital city of the United States, established as a federal district in 1790. It is not part of any state, serving as the seat of the U.S. government, including the White House, Congress, and Supreme Court. D.C. has its own local government and a mayor, but Congress holds ultimate authority over it. The city is a hub for politics, culture, and history, home to numerous monuments, museums, and national landmarks that reflect the country's heritage. Despite its significance, residents have limited voting rights in federal elections compared to citizens in states.