The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

The only museum with its curator—and her pets—buried inside.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

This sublime architectural marvel is a rare example of an expressionist church.

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

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

Antique frame collection with 2,400 frames.

A brush maker used his factory to protect blind Jews from the Gestapo.

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.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

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

A restaurant and observation deck built in a unique broadcasting antenna.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

Wax models of disease and deformity are on display at this German medical museum.

A fascinating little museum dedicated to the thousands of chemical substances concealed in our food.

This former steel and coal plant is now a neon-lit industrial fantasia.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

It's always summer at the beach inside this former airship hangar.