One New Hampshire alleyway has become home to a public gallery of feline art.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

From lefty Jewish gathering site to hip cultural site in just 80 years.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

Ice cream stand, snack bar, and time capsule of milk conveyance.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Dim sum, served in a grand old theater.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The headquarters in Salem doubles as an occult art gallery.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Amsterdam's Red Light District leaves little to the imagination.

Cat art as far as the eye can see.

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

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

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

The intriguing personal collection of a professional demon-chaser.

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

Protecting the future of some of the rarest and most misunderstood mammals of North America.