An autonomous republic of Orthodox monks.

A two thousand year old brothel uncovered in Northern Greece.

Ancient Greek oracle of the dead.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

Even drowned in an ocean of toxic waste, the remnants of this Romanian village stand tall.

In a long-dry lake bed, these groups of massive stone pillars bear a striking resemblance to clumps of everyone's favorite fungi.

Mysterious standing stone formations looks like a petrified forest.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

An abandoned saucer-shaped monument in the Bulgarian mountains.