Nestled within a German forest is an intriguing, growing rock.

In a small churchyard in Dingolfing, Germany the quaint Schusterkapelle is there to remind you of your imminent mortality.

This abandoned Slovenian military barracks has become a punky-political art squat.

This densely-packed cluster of buildings was saved from the wrecking ball and turned into an art community.

A lakeside footbridge that records Nobel Prize laureates' names in metal silhouette.

This artistic fountain display pays homage to this area's theatrical history.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

An abandoned train station in Munich constructed for the 1972 Olympic games.

This impressive castle looms over small German town.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's deepest subway station is also a stunning ecological wonder.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

This chimerical bridge/tunnel appears to dead end right into the sea.

In the city forest of Augsburg are oval, artificial ponds formed from a World War II bombing campaign.

What appears to be an ordinary bridge is actually a rare aqueduct.

This fountain tucked away in a park is the focal point of the only "Green Basilica" in Germany.

The world's longest tunnel with an undersea section.

Peace Park and the Atomic Bomb Dome.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

It commemorates one of the world's earliest telegraphs.