2300-year-old Roman road connecting the empire.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

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

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

An alchemist's “magic door” stands in the middle of a Roman park.

According to the legend, this structure was built in a single night with the help of the devil.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

A limestone grotto where daylight filters in from below and turns the water a beautiful turquoise. Also home to a small underwater nativity scene.

This bronze boy sits on one of Capri's rocky cliffs, waving at the passing boats.

The Emperor Tiberius' palace of debauchery.

The glowing blue Nymphaeum of Emperor Tiberius.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Largest lake in Great Britain measured by surface area.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

Cascading waterfalls mark the gateway to the ancient burial place of Clan Macnab.