This tiny little island has, as the name says, just enough room for its single house.

This ancient temple is set up to take you on a pilgrimage of self.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A lush green oasis in the middle of Chicago.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

World-famous, Pink's still manages to keep its prized cult fetish status.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

Rebuilt remains of a temple to Roman god Mithras.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The curiosities and wonders of pharmacy in a delightful historic building.

The curios of pharmacist and collector Henry Wellcome.

This frequently-photographed waterfall takes only a short hike to visit.