A 16th-century horror show built in a lovely Italian garden.

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

Resting place of Hollywood's immortals is also site of summer film screenings.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Medical and zoological curiosities for sale.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

New York's oldest magic store.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

Try not to get slimed in Tribeca.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

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

A bizarre house filled with an astounding array of collections.

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

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

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

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

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

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

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

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