America's Most-Visited Monuments
No. 20 White House, Washington, D.C.
Annual Visitors: 570,057
This monument preserves centuries of history while continuing to function as the president’s residence and work place. This 132-room Neoclassical mansion remains the only private residence of a head of state that opens its doors to tourists for tours—and for free. Plan well in advance to get a firsthand look at the Green, Red, Blue, North, and East rooms and other spaces used by every American president since John Adams in 1800. Kudos to Thomas Jefferson, however, for first welcoming the public in 1805. whitehouse.gov