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

This ancient market is often referred to as the oldest shopping mall in the world.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This zoological museum began as the first great curiosity cabinet.

An extraordinary collection of 18th century anatomical waxworks.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The first museum in the world devoted to sexual gadgetry.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

This building features dozens of faces along its facade, although one is a bit chilling.

A beloved local artist has been honored with this statue of a man emerging from a toilet.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

The mummified relic of St. Catherine sits forever on a golden throne.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.