The Washington Monument (Babylonian obelisk ... is "555 feet and 5 1/8 inches tall. It is 55 feet wide at the base." That's 6,665 1/8 inches in height, with a base measuring 660 inches wide.

The Washington Monument is the world’s tallest obelisk and was the tallest manmade structure in the world until its height was surpassed ... as a mere nub of 156 feet tall for two decades.

The structure is made of white marble blocks that range in thickness from 15’ at the base to 18" at the monument’s top. The marble changes color at 150 feet; that marks the spot where ...

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The Washington Monument, completed in 1884, stands at 555 feet tall and was the tallest structure in the world from 1884 to 1889 before it was overtaken in height by the Eiffel Tower in Paris.

The Washington Monument, completed in 1884, stands at 555 feet tall and was the tallest structure in the world from 1884 to 1889 before it was overtaken in height by the Eiffel Tower in Paris.

At the center of Washington, D.C., the impressive ... and expanded the existing foundation and trimmed the monument’s height to 555 feet. A newfangled steam elevator was installed to aid ...

In July 1827, residents of Boonsboro, Maryland, built the majority of the Washington Monument in just one day ... at the South Mountain site. Twelve feet from the tower’s base, the townspeople ...