Built by the patriotic residents of Boonsboro in a single day.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

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

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

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

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

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

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

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

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

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

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

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

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

A priceless collection of the Nation's cryptologic history.

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

An astounding collection of medical specimens, including bits of President Lincoln.

Bizarre Cavern.

A museum dedicated to exhibiting remarkable outsider art.

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

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

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The trials and tribulations of marking Poe’s grave.

Learn about our ancestral eating habits at the passion project of an archeologist.