A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

A small town Romanian cemetery filled with darkly humorous gravestones.

Romania's triumphal arch looks out over Bucharest.

A giant portrait of an ancient king looms over the river.

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

Moss and stone turn this waterfall into an otherworldly liquid veil.

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

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Gigantic Romanian salt mines used to heal respiratory conditions.

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

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

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A Romanian church built from one single oak.

No one knows who built this strange cave of worship or exactly why.

The growing stones of Romania.

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

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Religious structure known for its sculpted details.

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

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

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

The romantic botanic tunnel feels like a well-kept secret.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

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