was the principal architect of Washington, D.C., and his
wide main avenues, placement of major buildings, and
gridlike pattern of the streets are still evident in the
nation's capital today.
The U.S. Capitol
is the seat of the federal government,
where both houses of Congress meet. The building has
175,170 square feet of usable space, encompassing
approximately 540 rooms, and sits on 274 acres.
The Lincoln Memorial
is 189 feet long, 118-2/3 feet wide, and
99 feet high. The interior is dominated by a statue of
Abraham Lincoln that stands 19 feet high and is 19 feet
across. Construction began on February 12, 1915, and the
memorial was dedicated on May 30, 1922.
stands 555 feet 5-1/8 inches high. It was designed by
Robert Mills. Construction began on August 17, 1880, and
was completed on December 6, 1884. Total cost of the
The White House
is the official residence of the President of
the United States. It sits on an 18-acre plot at 1600
Pennsylvania Avenue, in Washington, D.C. Originally known
as the "President's House" and then the
"Executive Mansion," it was officially named
"The White House" by President Theodore
Roosevelt in 1901.