At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

A remote horde of architectural treasures fit for Indiana Jones.

A Civil War Museum with some notable medical antiques.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

This abandoned sea fort has become an accidental bird sanctuary.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

After hundreds of years of settlement, this once-bustling fishing village sunk into the Chesapeake Bay.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

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

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

Ship skeletons haunt Baltimore's waterways.

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

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

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

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

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

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