The United States Capitol's former columns still stand.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.