Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

This magical-looking island is notorious for the misfortunes suffered by its owners.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

This large, circular tomb is the final resting place of the first emperor of Rome.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A forgotten "city of water" underneath the famous Trevi district.

One of the most important yet well-hidden museums dedicated to the history of medicine.

Pilgrimage site for star-crossed lovers.

Ruins of a 10th century church tucked away deep in a botanical garden.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Crushed coral and crystals give the sand its signature coloration.

This 16th-century monastery has been turned into a surrealist architecture compound.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

A fairy tale castle in modern Rome.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

2300-year-old Roman road connecting the empire.

Geothermal waterfalls in Tuscany.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.