A 30-acre garden inspired by the principles of modern physics.

These fantastically named natural pools look like something out of a Scottish myth.

A statue representing a lost Roman profession that was vandalized for centuries.

This palatial building houses a remarkable gallery of papal portraits.

There once was a man named Lear / Who found limericks so dear / His final resting space / Is an unusual place / Most people don’t know he’s here.

This ancient walled garden turns fog into food.

Drink wine handed out through a window as part of an age-old tradition.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

These delicate sand pyramids look like naturally occurring gothic spires.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

Europe’s oldest natural human mummy.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

One of the largest caves in the world open to the public.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

Abandoned medieval hill town.