An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

This Latvian shot factory is still used twice a year to manufacture bullets the old-fashioned way.

This enigmatic artifact remained buried in a churchyard for years.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

A black cat protests the City Guild in Riga's Old Town.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

3,000 market stands in five former Zeppelin hangars.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

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

A medieval church built up to defend its village.

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

A collection of items from a way of life that no longer exists.

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

Something's watching you.

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

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

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

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

A countryside Romanian cemetery filled with colorful crosses bearing lyrical, ironic, or satirical rhymes.

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

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Said to be the only museum in the world dedicated to the most classic of all blooms, the rose.

This massive stone and steel monument remembers a century-old battle that cost thousands of lives and nearly destroyed the city.

A vast Communist-era exhibition space in the Bulgarian capital.