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

Macabre astrological automaton clock dating to the late 1400s.

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Building owners can take out tiles for free at this repository for historic building materials.

Elaborate tile work in this railway station tells the story of Portugal.

Ancient catacombs form the foundation for this Rococo orgy of a church.

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

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

Go inside to really appreciate this 500-year-old technological masterpiece.

This museum promotes informed contraception by documenting its often secret past.

Dine amidst exotic plants at this former royal greenhouse.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

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

This ancient structure appears Roman, but was constructed during the 16th century and was utilized until 1911.

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

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

An arts and culture melting pot inside an old roadside inn from the Ottoman era.