Perched above the bustling town of Kerak is a sprawling, ruinous castle that has witnessed nearly a millennia of Levantine history.

These ruins by the Dead Sea is where John the Baptist met his untimely end.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Go surfing on this urban wave, "hacked" by local surfers.

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

Something's watching you.

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

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

Romania's triumphal arch looks out over Bucharest.

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

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

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

2300-year-old Roman road connecting the empire.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

Museum dedicated to the terror regimes of Hungary.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

Looming communist pillar with a Czech twist.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The great Danube river starts here.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.