A Milanese café entirely designed by the American director Wes Anderson.

Venice's "Island of the Mad."

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

An unusual art exhibition in a suburban yard is designed to awaken the souls of those flowing by.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Eighteen miniature death-scene dioramas.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

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

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The oldest surviving botanic garden in the United States.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

World's first "penitentiary," meant to be humane, drove men insane.

A historic town sits upon the site of a long-lost 18th-century trading community.

A unusual sanctuary for abused and exotic animals in South Jersey.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

A recently abandoned psych ward at the end of Sanatorium Road.