The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

This abandoned Slovenian military barracks has become a punky-political art squat.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

The first modernist church in Europe.

An ornate private entrance to the Vienna subway built specifically for the emperor.

The topiary maze at the Habsburg hunting lodge.

Macabre museum devoted to historical Viennese murders.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A rare chance to ride one of the few continuous elevators still in operation.

A silly medieval mural preserved on the side of a Viennese house.

A giant snail sculpture looking longingly at the German traffic museum.

A subterranean display of public art and architecture.

A spherical "micro-nation" in the heart of Vienna.

The beautiful baroque library of the Hapsburg empire.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Fantastic stories on a miniature railroad.

A magnificent collection of imperial armor and weaponry.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The resting place for anonymous victims of the Danube's dark waters.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”