A hand-built folk art installation covered with messages of God's love.

One of the oldest amusement rides in existence was a huge disappointment to its creator.

A typographic tribute to the many comedic greats who make Great Britain laugh.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A 30-acre garden inspired by the principles of modern physics.

The sign at the garden gate reads: "These Plants Can Kill."

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

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

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

A snapshot of the city's fascinating voodoo culture.

Rippling sand dunes frozen in the Arizona rock.

This giant statue of a vulva became internationally famous after an American exchange student got stuck in it.

The narrowest street in the world is in danger of closing up entirely.

Swiss vineyards in a UNESCO heritage site.

Artworks by loners, prisoners and the criminally insane.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

This large sculpture of white plates and forms is actually a huge sound amplifier.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.