Shelves covered in dozens of coffee bean varieties fill this North End institution.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

A man-made island in scenic San Francisco Bay.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

The restored and active Victorian-era final resting place of San Francisco.

A remarkable cabinet of curiosities in an art space in the center of Berlin.

A sweet museum focused on beets.

An old department store turned Nazi prison turned artist commune.

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

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

An abandoned swimming pool decays on the outskirts of Berlin.

A museum dedicated to a Cold War era sausage.

This classic restaurant features a gorgeous mirror-clad room.

This monumental work of art symbolizes the coming together of a previously divided city.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

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

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

This conical hill was built as a testing ground for an engineer known as the Glider King.

Berlin's old airport.