Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

A beer pipeline runs beneath Bruges.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

A beautiful maze marks where three countries meet.

Incredible labyrinth of man made caves.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

The largest airborne operation in history was launched to capture this bridge.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Portraits of musicians line Oude Binnenweg, the jazziest street in the city.

A giant yellow phallus sculpture hidden in the gardens of the Museum Boijmans Van Beuningen.

An early 19th-century English style garden hidden in the Rotterdam cityscape.

Building Men of War and Indiamen from Holland's Golden Age.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

A moving memorial to the fallen and missing from WWI trenches.

This memorial museum chronicles the apocalyptic destruction of the First World War.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

Inaugurated in 1921, this is one of many statues in France dedicated to the people who died during World War I for their country.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.