Huge stone depressions which may have acted as an Incan agricultural experiment.

A former taxidermist has turned his old shop into a folk art mecca.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A field of nothing but boulders which resembles a giant's gravel driveway.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

The remains of this visionary community can still be found much as it was a century ago.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

Home to items never before seen by the public.

Three bridges straddle a stream, one stacked upon the other.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

"X" marks the spot of an echo chamber in the middle of a plaza.

Walk through depictions of the torture inflicted on those who go to Buddhist hell.

This classic restaurant features a gorgeous mirror-clad room.

Long-secret natural history museum, featuring the skull of a "Terror Bird."

This antique prison is a tourist attraction with a sordid past.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.