Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

On Japan's Tashirojima Island, cats are king.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Dramatic river bend surrounds a natural red-rocked pedestal.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An emerald-green grotto just a short trip from Austin.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The world's only museum devoted to the wonders of fluorescence.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

France's most famous cemetery, with some of its most curious tombs.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

These fantastically named natural pools look like something out of a Scottish myth.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

An exquisite tunnel of cascading flowers.

An enormous, inside-out glass globe built in 1935.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.