Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

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

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

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

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

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

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

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

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

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

Something's watching you.

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