This 11th-century structure is one of the oldest churches in Romania.

This Transylvanian church has changed its denomination four times.

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

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

A medieval church built up to defend its village.

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

Known as the Hintz House, this medieval pharmacy has been an apothecary's haven for nearly 450 years.

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

The Natural History Museum that time forgot.

This Romanian village may have been drowned, but it is long from forgotten.

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

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

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

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

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

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

This once-derelict building is now one of the most beautiful bookstores in the world.

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

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

Conspiracy theories and occult legends surround this mysterious natural rock formation.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

English antique dealers with a taste for the unusual.

This hidden green space is the city's second largest conservatory.

One of the world's largest collections of pathological specimens.