President's Park, located in downtown Washington, D.C., encompasses the White House and includes the Eisenhower Executive Office Building, the Treasury Building, and grounds; the White House Visitor C
President's Park in Washington, D.C., including (left to right in center): The Ellipse, the White House, and Lafayette Square
Jefferson Pier, Jefferson Stone, or the Jefferson Pier Stone, is a stone in Washington, D.C. that marks the second prime meridian of the United States even though it was never officially recognized, e
West side of Jefferson Pier with Washington Monument in background (April 2011)