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  2. National Air and Space Museum - Wikipedia

    en.wikipedia.org/wiki/National_Air_and_Space_Museum

    The museum's prominent site on the National Mall once housed the city's armory, which became Armory Square Hospital during the Civil War; it nursed the worst wounded cases who were transported to Washington after battles. [6] The rest of the site was occupied by a cluster of temporary war buildings that existed from World War I until the 1960s. [7]

  3. List of planetariums - Wikipedia

    en.wikipedia.org/wiki/List_of_planetariums

    The Hayden Planetarium at the American Museum of Natural History in New York City is the most visited planetarium in the world. [ 1 ] This entry is a list of permanent planetariums across the world.

  4. List of Foucault pendulums - Wikipedia

    en.wikipedia.org/wiki/List_of_Foucault_pendulums

    Salt Lake City: Clark Planetarium: Virginia: Richmond: Science Museum of Virginia: Richmond: University of Richmond, Gottwald Science Center Washington: Auburn: Green River College: Ellensburg: Central Washington University: 34 ft (10.5 m) 6.4 s Seattle: University of Washington: 49.8 ft (15.1 m) 7.8 s Spokane: Spokane Falls Community College ...

  5. Georgetown University Astronomical Observatory - Wikipedia

    en.wikipedia.org/wiki/Georgetown_University...

    Light pollution from surrounding Washington, D.C., has limited viewing celestial bodies from the location. On July 2, 1973, the Observatory was designated as a U.S. national landmark National Register of Historic Places.

  6. Washington, D.C. - Wikipedia

    en.wikipedia.org/wiki/Washington,_D.C.

    Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east. It was named after George Washington, the first president of the United ...

  7. File:Washington, DC metropolitan area map with counties and ...

    en.wikipedia.org/wiki/File:Washington,_DC...

    English: Based upon the US counties map but cut down to show only the Washington, DC metropolitan area and then clipped to a rectangular region Source File:Usa_counties_large.svg

  8. Steven F. Udvar-Hazy Center - Wikipedia

    en.wikipedia.org/wiki/Steven_F._Udvar-Hazy_Center

    View from Ground Level (2024) Designed by Hellmuth, Obata, and Kassabaum, who also designed the National Air and Space Museum building, the Center required 15 years of preparation and was built by Hensel Phelps Construction Co. [4] The exhibition areas comprise two large hangars, the 293,707-square-foot (27,286.3 m 2) Boeing Aviation Hangar and the 53,067-square-foot (4,930.1 m 2) James S ...

  9. NASA facilities - Wikipedia

    en.wikipedia.org/wiki/NASA_facilities

    NASA Headquarters in Washington, DC provides overall guidance and political leadership to the agency. [1] There are 10 NASA field centers, which provide leadership for and execution of NASA's work. All other facilities fall under the leadership of at least one of these field centers. [ 2 ]