A serious museum dedicated to two German comedians.

Located in an old church, this brewery produces a different kind of holy water.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

A 12th-century church with a medieval fresco and an intriguing “Greek runestone.”

This giant crucifix is like U2's Joshua Tree for Swedish death metal fans.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

The library's graceful rotunda is like a bibliophile's temple.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

An extraordinary collection of 18th century anatomical waxworks.

An amazing collection of wax anatomical models and terratological models.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

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

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A lush oasis full of vibrant plants and striking geometric displays.

The stunning interior of this Gothic church is covered in ornate gold details.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

This zoological museum began as the first great curiosity cabinet.