Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

A sulfuric martian landscape that looks far better than it smells.

This black church sits alone among a field of lava rock.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

Three columns of volcanic rock shoot out of the ocean.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

An island graveyard with spectacular views of the Caribbean.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Constructed in the 1920s, this former pencil factory is now an office building.

Brooklyn's Barkaloo Cemetery is the resting place of a scant two bodies.

The gilded vestiges of a sterling department store can still be found in a Brooklyn shopping center.

Risk arrest while partying to fund art.

A curious friendship between two inanimate ladies.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Ride the subways of yesteryear.

The storied steakhouse is the last in a long line of Lebanese-owned supper clubs in Tulsa.

Detailed facade of a brownstone in Boerum Hill.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

The building that inspired Shirley Jackson's "The Haunting of Hill House."