The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

A piece of Seattle’s historic Chinatown preserved inside a modern museum.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

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

This classic restaurant features a gorgeous mirror-clad room.

The final resting place of one of Germany's most accomplished Renaissance men.

This Cold War–era fallout shelter was actually a storage facility for the nation's emergency currency.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

An industrial relic is now one of Europe's most staggering art spaces.

The footprint of a frustrated devil in Munich's Cathedral.

An intricate and amazing house built by architect Karl Junker.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Boats must transform into railroad cars to navigate this Polish canal.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Museum dedicated to "the man who moved the Earth."

This man-made mound monument was built out of soil from all across the Polish empire.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Terrifying derelict military hospital once housed a recuperating Hitler.

Super-heavy Nazi architectural experiment.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.