You asked, we answered. Here are some of the most popular questions we get about the U.S. Capitol. The answers may surprise you!

Has the Capitol been used as a prison?

No, but a building known as the "old brick Capitol" was during the Civil War. Following the war the building was converted to residences.

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Building.
How many original Olmsted trees are still on campus?

Approximately 45 of Frederick Law Olmsted's trees remain today, having endured more than a century of urban life on the front stage of American democracy.

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How many statues are there in the National Statuary Hall Collection?

Each state may contribute two statues.

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Columns in a room with statues and a chandelier.
How many women are represented in the National Statuary Hall Collection?

There are thirteen women currently represented. View the list.

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How much did it cost to build the Capitol?

The U.S. Capitol is a unique structure, as it has been built in successive phases over the past two centuries. The estimated historical cost of the United States Capitol as of 2003 was $133 million.

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Exterior view of a building.