Rising from the sea like a stone monster.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Hollowed out cedar log tubs set in an ancient towering forest.

A gargantuan crystal kingdom.

An ethereal glowing blue ocean cave in Croatia.

A layered tribute to the work of mosaicist Isaiah Zagar.

A hotel and restaurant serving as the mecca of kitsch.

Home of an evil witch famous within southern folklore.

This abandoned amusement park was built on a site with a dark history.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A natural gas leak provides a flickering flame beneath a waterfall.

An Aztec snake god has taken the material form of an apartment complex.

Hidden beneath the streets of London is a secret subway that only carried mail.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Two stunning 17th-century libraries and a cabinet of curiosities.

Monasteries on rock pillars, once accessible only by frayed ropes.

This structure among the trees was the result of divine inspiration.

Enormous lake at the bottom of a unique cave system.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

A battle between nature and architecture in the Cambodian jungle.

A walk through the historic city center, under the streets of Seattle.