A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

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

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

The land is home to swimming ponies and a legendary 18th-century treasure.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

Obscure Freemasons still live in D.C.’s largest private residence.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.