quirky things to do in washington dc?
['Add National Capitol Columns to a New List. Washington, D.C. National Capitol Columns. ... ', 'Add The Exorcist Stairs to a New List. Washington, D.C. The Exorcist Stairs. ... ', 'Add International Spy Museum to a New List. Washington, D.C. ... ', 'Add The Mansion on O Street to a New List. Washington, D.C.']