The scuba diving training facility was named for the steam that rises from the cave's chimney.

A historic neighborhood church is reborn as a psychedelic arts collective.

A reproduction of earth's many biomes.

"Looks so real, it's scary!"

A house filled to the brim with oddities and curiosities.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The trials and tribulations of marking Poe's grave.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Quite simply the largest tree in the world (by volume).

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

One part antique store, one part curiosities hodge-podge.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The second oldest continuously operating bar in Louisiana.

Seattle's own bad art museum located inside Cafe Racer.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The largest self-built castle in the U.S., six decades in the making.

A technicolor place of worship for Elevationists.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.