This massive underground salt mine now holds a sci-fi theme park in its depths.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

Romania's triumphal arch looks out over Bucharest.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

Something's watching you.

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

This bone-filled cave got its name after they found 140 bear skeletons inside.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Romania's only crater lake with water as pure as if distilled.

This snug medieval lane is one of the narrowest streets in the world.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A muddy alien landscape that is home to rare species of exotic plants.

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Religious structure known for its sculpted details.

This metro station doubles as an unintentional paleontology museum.

A chemical factory damaged by two earthquakes and an explosion that became abandoned after bankruptcy.