This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

This cemetery features modernist statues as strange as its name.

A church of bones, decorated with 40,000 human skeletons.

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.