Fall down the rabbit hole into a surreal journey of human consciousness "from ass to soul."

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

This curious sculpture represents the perseverance needed to take to the skies.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Puppet theater and museum holding a collection of more than 300.

Blitzkrieg bop your way through Berlin's Ramones Museum.

A collection of abandoned typographic signs from Berlin and beyond.

Art and a pun, all in one.

A surreal museum of extraordinary industrial objects.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

These whimsical works of art tell the story of the city's past and present.

A men’s restroom became a sandwich shop.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

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

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

New York's southernmost subway station is whimsically wavy.

A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

New York City's only radical feminist independent bookstore.

The oldest pastificio in Queens offers visitors fresh noodles and a peek inside the macaroni-making magic.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

Harlem park dedicated to compulsive hoarders killed by their own junk.

The world's largest collection of materials relating to lesbian history is housed in a Brooklyn townhouse.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.