A hidden tunnel of bones in one of Malta's oldest churches.

This subterranean necropolis holds three floors of antler-dug grave caves.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

This unique building in the main square stands out among the city's typically Baroque architecture.

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

These lesser-known Maltese catacombs date back over 1,700 years.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

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

Abandoned village in Sicily built during the agricultural reforms of Mussolini.

Cave shrine on Monte Pellegrino.

A fairytale-like medieval church perched atop a rocky cliff on Italy's "Coast of the Gods."

Haunting graffiti left by prisoners of the Spanish Inquisition.

A petite white lighthouse perched on the ancient core of Stromboli Volcano.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

A collection of grotesques lines the walls of this Italian villa.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Climb the dead electric pylons of Messina.

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

An eccentric home in Sicily turns heads on a regular basis.