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Hot on the Hill? Catch a Summer Break at This Hidden Capitol Gem

Undercover Capitol takes you inside the historic workplace — one video at a time

Long before air conditioning in the 1870s, a cool, sunken oasis with a babbling fountain was built to provide a welcome respite from the notorious heat of Washington summers. Have a virtual seat in the shade and learn more about the Summerhouse — sometimes called the grotto — on the Capitol grounds.