Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

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

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Remnants of cone-shaped fascist bomb shelters in Milan.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The mark of the Devil's horns on a marble column in Milan.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

A well-preserved 2nd century fort where moles are the archaeologists.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

This London plaque marks the spot where David Bowie's famous alien made his debut.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

Rebuilt remains of a temple to Roman god Mithras.

A beautifully well-preserved ancient Roman villa.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

Mysterious tombstones thought to be remnants of Atlantis.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.