This centuries-old Italian chapel hangs midway down a sheer cliffside.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

One of the oldest libraries in the world is still operating and contains the oldest existing document in the Italian language.

Dark, eerie exhibits make for a surreal exploration of the subconscious.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.