In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

This German version of Universal Studios holds a vault of treasures from the NeverEnding Story.

These 18th century gardens tell a rocky story of the son of Odysseus.

Terrifying derelict military hospital once housed a recuperating Hitler.

This historic stone bridge has an entire neighborhood clinging to its sides.

This conical hill was built as a testing ground for an engineer known as the Glider King.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

"The most colorful grottoes of the world.

This "floating railway" is one of the world's oldest monorail systems.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

A striking 12th-century-style castle built on the edge of a cliff.

A collection of abandoned typographic signs from Berlin and beyond.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A museum dedicated to the silliest fruit.

Denmark’s never-ending bridge.

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

An air of mystery pervades this modern-day singing Stonehenge.

Local legend says a monk brought Christianity to Bornholm through his sermons in a cave inside this free-standing rock.

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

Northern Europe’s largest castle ruins sit precariously on an island cliffside.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Considered one of the most haunted places in Europe, this 800-year-old castle was home to noble prisoners.