Washington, D.C., anchors the southern end of the Northeast megalopolis. As the seat of the U.S. federal government, the city is an important world political capital. The city hosts buildings that house federal government headquarters, including the White House, U.S. Capitol, Supreme Court Building, and multiple federal departments and agencies. The city is home to many national monuments and museums, located most prominently on or around the National Mall, including the Jefferson Memorial, Lincoln Memorial, and Washington Monument. It hosts 177 foreign embassies and the global headquarters of the World Bank, International Monetary Fund, Organization of American States, and other international organizations. Home to many of the nation's largest industry associations, non-profit organizations, and think tanks, the city is known as a lobbying hub, which is centered on and around K Street. It is also among the country's top tourist destinations; in 2022, it drew an estimated 20.7 million domestic and 1.2 million international visitors, seventh-most among U.S. cities.