A Spanish-style estate that has traded black ties for rock concerts.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

America's most famous piece of self-built architecture.

This historic tower in the California desert promises visitors a "vortex of good vibes".

The eccentric mansion of one the most popular horror authors of modern times.

The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

A rocky Irish outcropping with a history of wealth, conflict, and ruin.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

Architectural monsters are devouring this palace's every door and window.

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

A unrivaled and rather horrifying collection of wax dermatological models.

How did a French journalist’s grave become the sexiest statue in the cemetery?

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

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

This little-known relic crypt holds stolen parts of a Roman Empress.