Capitol Square

Capitol Square (HM23SO)

Location: Washington, DC 20001
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Country: United States of America
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N 38° 53.496', W 77° 0.603'

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Historical Information

1 Summerhouse
Constructed in 1879-1880 , the Summerhouse offers visitors a shaded place to rest, admire views of the Capitol, and have a drink of water. Olmstead's principal architectural assistant Thomas Wisedell, was the designer. The Summerhouse is a tribute to the bricklayer's craft-constructed of carved and radial brick, creating elaborate architectural features. Nestled in the hillside, the structure features a "grotto" with running water that, along with the central fountains, adds a cooling effect during the summer.

2 The Olmstead Terrace
Constructed between 1884-1892, the marble terrace that surrounds the Capitol on the north, west, and south sides provides a strong visual platform for the building, correcting the illusion that the massive structure was about to slide down the hill. The cascading monumental stairs also add to the apparent height and imposing nature of the building. To accommodate growing Congressional space requirements, the area under the terrace was divided into 93 rooms for offices and meeting spaces.

Between the grand stairs, a semi-circular exedra features arranged trees and flowers in an elevated bed surrounding an octagonal fountain. Though Olmsted spearheaded the vision for the terrace, its detailed design was left to architects Thomas
Wisedell and C. Howard Walker to complete. Some controversy ensued as the terrace was detailed in the Romanesque Revival style, which was popular at the time, in contrast with the neo-classical architecture of the building above.

The 18 bronze urns atop the balustrade piers were cast by Schultz Co., a foundry in Baltimore, Maryland in 1890. A more highly decorated urn was initially envisioned but the design was not used. A prototype of the more ornate urn is now in use at the front of the Botanic Garden Conservatory along the seven recent cast bronze replicas.

U.S. Capitol
Visitor Center

Average walking time: 5 to 6 minutes

Monday - Saturday
8:30 am - 4:30 pm
For more information visit:

Visitor Center
Located Below Ground Level

Capitol Tours
Official Business and Appointments
House and Senate Galleries
Gift Shops
HM NumberHM23SO
Marker ConditionNo reports yet
Date Added Thursday, December 14th, 2017 at 10:01am PST -08:00
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Locationbig map
UTM (WGS84 Datum)18S E 325673 N 4306667
Decimal Degrees38.89160000, -77.01005000
Degrees and Decimal MinutesN 38° 53.496', W 77° 0.603'
Degrees, Minutes and Seconds38° 53' 29.76" N, 77° 0' 36.18" W
Driving DirectionsGoogle Maps
Area Code(s)202, 703
Closest Postal AddressAt or near 250 New Jersey Ave NW, Washington DC 20001, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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