A marble Lucifer hides behind the pulpit of this Gothic cathedral.

A rare example of World War I trenches from the British front.

This abandoned Belgian fortress is purposefully being left to nature.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

This ghost town in Belgium will lose its street art when it ceases to exist.

Theme park featuring miniature replicas of European monuments.

Meet the bronze beloved pet to a family of famous peeing statues.

Cozy basement bar sports an inventory of over 2,000 beers.

Climb inside an iron crystal magnified 165 billion times its normal size.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A sculpture of a courtesan towers above Lake Constance, recalling a church scandal.

St. Peter’s, in Western Germany, has stood as a masterpiece of Romanesque architecture since 1181.

This 1960's Soviet submarine in Peenemünde Harbor claims to be the largest submarine museum in the world.

Located in a heritage building, this Mickey D's is missing its Golden Arches.

A pair of giant stone heads represent the ancient Roman saints beheaded here.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

The largest mosque in Germany.

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

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

A mammoth WWII anti-air defense tower has been repurposed as a hotel with a rooftop garden.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.