Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

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

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

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

Its diverse collection of computers and technology spans the ages.

This former asylum for Black Americans is haunted by its history of violence and racism.

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

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

A hidden alley in urban Baltimore is a haven for graffiti artists.

A museum dedicated to exhibiting remarkable outsider art.

Eighteen miniature death-scene dioramas.

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

A remote horde of architectural treasures fit for Indiana Jones.

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

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Remnants of a storybook amusement park hidden behind a strip mall.

This abandoned sea fort has become an accidental bird sanctuary.

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

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

Ship skeletons haunt Baltimore's waterways.

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

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.