This enormous abandoned prison was once dubbed the "Bastille of Romania."

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

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

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

The Natural History Museum that time forgot.

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

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

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

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

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

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

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

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

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.

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

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

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

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

This marker commemorates a long-lasting historical haunting and demonic possession that led to one of Denmark's worst witch trials.

According to legend, this is the burial place of a mythical three-legged death omen horse.

This enormous aluminum figure in Denmark lying in a plunged position, echoes the global debate on canceled historical statues.

Once a granite mine, this beautiful lake is the perfect place to cliff jump and zipline in Denmark

Even though bison are not native to this Danish island, you might find them walking around the Almindingen Forestas as part of a nature experiment.