Pilgrimage site for star-crossed lovers.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Where Venice's gondolas go for a tune-up.

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

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

Breathtaking and huge 430 year old maps of Italy.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A plaque on the base of this statue holds a bewitching design.

What appears to be an ancient Roman temple is actually a Catholic church.

A map of Italy made entirely of trees.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

This enormous censer uses a pulley system installed over 400 years ago.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

This ship offers visitors the chance to spend the night aboard a former floating hospital for fishermen.

This castle has links to Portugal’s founding and struggles for independence.