Aerial view of Jefferson and Washington Memorial Postcard
Aerial view of Jefferson Memorial and Washington Monument. Image from the U.S. Library of Congress. The Thomas Jefferson Memorial is a presidential memorial in Washington, D.C. that is dedicated to Thomas Jefferson, an American Founding Father and the third president of the United States. The neoclassical building was designed by John Russell Pope. It was built by Philadelphia contractor Tyler Nichols. Construction began in 1939, the building was completed in 1943, and the bronze statue of Jefferson was added in 1947. When completed, the memorial occupied one of the last significant sites left in the city. The Jefferson Memorial is managed by the National Park Service under its National Mall and Memorial Parks division. In 2007, it was ranked fourth on the List of America's Favorite Architecture by the American Institute of Architects.The Washington Monument is an obelisk near the west end of the National Mall in Washington, D.C., built to commemorate the first U.S. president, General George Washington. The monument, made of marble, granite, and sandstone, is both the world's tallest stone structure and the world's tallest obelisk, standing 555 feet 5⅛ inches (169.294 m).[n 1] There are taller monumental columns, but they are neither all stone nor true obelisks.[n 2] It is also the tallest structure in Washington D.C.. It was designed by Robert Mills, an 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 happened because of co-option by the Know Nothing party, a lack of funds, and the intervention of the American Civil War. A difference in shading of the marble, visible approximately 150 feet (46 m or 27%) up, shows where construction was halted for a number of years. The 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 previously held by the Cologne Cathedral. The monument held this designation until 1889, when the Eiffel Tower was completed in Paris, France. The monument stands due east of the Reflecting Pool and the Lincoln Memorial.