A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

Haunting graffiti left by prisoners of the Spanish Inquisition.

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

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

Water and windows define this defensive Italian well.

A line of abandoned, alien-like fortresses dot the mountains of North Italy.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

A madman's personal garden filled with 1,000 sculpted heads.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

The bomb-ravaged remains of of a colossal Neptune.

These delicate sand pyramids look like naturally occurring gothic spires.

Europe’s oldest natural human mummy.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

A once-luxurious, now abandoned hotel in the Italian Alps.

This half-finished "city of toys" was almost Italy's own Las Vegas.

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

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Virgil's many-mouthed gateway to the underworld.