The Washington Monument is a large, white-colored obelisk at the west end of the National Mall in Washington, D.C. . It is a United States Presidential Memorial constructed to commemorate George Washington.
The monument is among the world's tallest masonry structures, standing 555 feet (169.29 m) in height and made of marble, granite, and sandstone. It was designed by Robert Mills, a prominent American architect of the 1840s. The actual construction of the monument began in 1848 but was not completed until 1884, almost 30 years after the architect's death. This hiatus in construction was because of a lack of funds and the intervention of the American Civil War. A difference in shading of the marble, visible approximately 150 feet (45 m) up, clearly delineates the initial construction from its resumption in 1876.
Its cornerstone was laid on July 4, 1848; the capstone was set on December 6, 1884, and the completed monument was dedicated on February 21, 1885. It officially opened October 9, 1888. Upon completion, it became the world's tallest structure, a title it inherited from the Cologne Cathedral and held until 1889, when the Eiffel Tower was finished in Paris, France.
The John F. Kennedy Center for the Performing Arts, the name by which it is known, (or, as named on the building itself, the John F. Kennedy Memorial Center for the Performing Arts but, locally called the The Kennedy Center), is a performing arts center located on the Potomac River, adjacent to the Watergate Hotel in Washington, D.C.. It opened in 1971.
It represents a unique public/private partnership, since it is both the nation's living memorial to President John F. Kennedy and the "National Center for the Performing Arts", which includes educational and outreach initiatives, almost entirely paid for through ticket sales and gifts from individuals, corporations, and private foundations.
Designed by architect Edward Durrell Stone, it was built by Philadelphia contractor John McShain and is administered by a bureau of the Smithsonian Institution. It receives Federal funding each year to pay for the maintenance and operation of the building.