South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Museum dedicated to awful artwork.

Dim sum, served in a grand old theater.

Invented in the mid-19th century, this machine could send copied images via telegraph lines.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A British Commonwealth cemetery in the heart of Milan, with 421 allied soldiers died during World War II.

Vast network of air raid tunnels beneath Lombardy's capital.

"The prettiest love letters in the world" ... or so said Lord Byron.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

Monsters and miniatures are held in equal esteem at this wondrous museum.

A trove of ridiculously valuable prints and manuscripts under one roof.

Notorious artist squat renovated into legal studios.

France's most famous cemetery, with some of its most curious tombs.

The first museum in the world devoted to sexual gadgetry.