A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The world's oldest bookshop still in operation.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

There aren't too many operational funiculars around, but Pittsburgh has two!

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

The final resting place for the remains of 143 Habsburg royalty.

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

This spooky statue sits outside a famous Prague theater.

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

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

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Walk through Czech history in Prague's largest graveyard.

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

Time stands still at this serene burial ground in the center of Budapest.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Budapest's Communist-era statues, banished to the suburbs.