The Washington Monument by Robert Mills (original architect) and Lt. Colonel Thomas L. Casey (final architect) was opened in Washington, DC in 1884.
Designed as a 19th century Egyptian Revival obelisk, the Washington Monument is the most significant memorial to the nation’s 1st President. Standing 555 feet 5-1/8 inches upon completion, it was the tallest manmade structure on Earth until replaced by the Eiffel Tower until 1889. Constructed in two major phases (1848-1856; 1876-1884) the monument weighs over 80,000 tons.
These photos and description of Washington Monument in Washington, DC are part of materials from its registration form of in the National Register of Historic Places.
