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

This church is named for one of the most dramatic tales in the early Christian church.

These temples are among the oldest free-standing stone buildings in the world.

Ancient mysterious ruts carved in the bedrock.

Enigmatic tombs and cave dwellings on the outskirts of a rural village.

The ruins of a megalithic monument sit right in the garden of a luxurious Maltese resort.

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

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

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

A centuries-old forgotten underworld lies beneath Malta.

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

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The floor of this spectacular Baroque sanctuary is covered in memento mori.

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

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

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

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

The celebrated eyesore created by starry-eyed sweethearts.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

This bridge was constructed from the rubble of the infamous Bastille.