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

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

Stone Age solar temple is aligned with the sun on each equinox and solstice.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.

Contrary to what its name suggests, you won't find any bunnies here.

A monument to the migrants who cross the dangerous waters between North Africa and a tiny Italian island.

This megalithic tomb was crafted by a mysterious civilization that settled the island of Pantelleria.

This ancient walled garden turns fog into food.

This remarkable checkered church on a Corsican hilltop is fabled to have been built by angels.

A 15th-century Corsican chapel that possesses a rare Catholic monument: a "Scala Santa," or "Holy Stairs."

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

Resting on a hill overlooking the coast, these medieval ruins look completely deserted save for their restored chapel.

This Corsican Neolithic site is full of pre-Roman megalithic structures that may or may not be penises.

A breathtakingly steep set of stairs is carved directly into the face of the sea cliffs of Bonifacio.

Windblown rock formations in an ancient Roman quarry.

Crushed coral and crystals give the sand its signature coloration.

This one-of-a-kind archeological site is home to strange prehistoric ruins, the original use of which is still a mystery.

Greenery covers the face of a gently-dripping waterfall deep in the mountains of central Sardinia.

Mysterious tombstones thought to be remnants of Atlantis.

At an estimated 3,800 years old, this olive tree is one of the oldest on earth.

A striped 12th-century basilica sits in the countryside of Sardinia.

Stalactites and stalagmites in a beautifully lit cave.

This weird, elephant-shaped rock also hosts two ancient tombs.

Packed with geological formations, an ancient river, and taxidermied seals, this overlooked coastal cave system is worth a spelunk.