There are more than 20 water features that Architect of the Capitol employees care for. Spanning across the Capitol campus, each of the House office buildings, Senate office buildings, Library of Congress buildings, Supreme Court buildings and the U.S. Botanic Garden have some type of fountain or pool.
1. Skylight Reflecting Pools
2. Supreme Court Plaza
Across First Street N.E., the Supreme Court Building's west front also has two water features. These fountains are placed among the marble plaza's alternating circles and squares.
3. Taft Memorial
Just off Constitution Avenue, between New Jersey Avenue and First Street, N.W., jets of water flow into a basin that rings the base of this memorial and carillon.
The fountain in the center of the Summerhouse building originally provided drinking water piped from a spring. The six small metal fittings around the fountain's upper perimeter secured chains that are believed to have held drinking cups or ladles. Now, three individual drinking fountains connected to the filtered city water supply provide drinking water, and the central fountain is used only for display.
5. Peace Circle
Surrounding the Peace Monument are wreaths, ribbons and scallop shells, plus a quatrefoil-shaped basin with a jet on each side.
6. Olmsted Drinking Fountain
7. House Garage Fountains
On the south side of the Capitol, there are two fountains that sit in the park behind the House Office Building. This beautiful space is a green roof for the parking garages below.
8. First Ladies Water Garden
Continuing down and around the hill, the water garden is located in the National Garden on the west side of the Botanic Garden Conservatory. Featuring a single water jet located in the center of four cascading pools, it honors our nation's first ladies and offers seating areas for visitors. Learn more at usbg.gov.
Thank you for the little tour, I found it interesting because some of these fountains can be so overlooked.