The astonishing collection of an infamous criminologist.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A little sculpture with a large wardrobe.

The Devil’s own choice when he needs a drink in Brussels.

Remnants of cone-shaped fascist bomb shelters in Milan.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

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

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

The secret medieval communication system will whisk your words above the noise of the crowd.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

100 year tradition of fist fights, marked by marble footsteps.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."