Eccentric concrete mansion and museum designed and built by hand from the inside out.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

One man's homage to the sun continues to grow like a glass fractal.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

A piece of outsider public art accompanied by a strange urban legend.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A reproduction of earth's many biomes.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

America's most famous piece of self-built architecture.

The site of the climactic scene from the classic horror film is now a historic landmark.

Venue for strange sideshow displays and musical acts.

A museum dedicated to the alleged Roswell Incident.

The United States Capitol's former columns still stand.

The magic's in the hole!

Where beautiful signs live on forever.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.