This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

This abandoned Victorian-style house was built in 1884.

This historic lighthouse was well known for the large number of women who served as its keeper.

An abandoned church gets a second life as a massive beer hall and event space.

Hundreds of skulls and bones at the largest skeleton museum in the country.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A remote horde of architectural treasures fit for Indiana Jones.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

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

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

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

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

An eerie, decaying ghost town destined to fade into the forest.