The attic of a four-century-old canal house hides a clandestine church.

Cat art as far as the eye can see.

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

A floating cat sanctuary on an Amsterdam canal.

Art and a pun, all in one.

An abused and forgotten metropolis, abandoned for centuries.

Sail in for a ’dam good slice.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

Unique antiquarian shop specializing in globes, maps, and prints.

A technicolor place of worship for Elevationists.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A Manhattan Episcopal church with an eerie underground crypt.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.