Scale model of St. Peter's Cathedral (Rome) in the middle of a small Dutch town.

This residence straddles a border between Belgium and the Netherlands.

This building once stood at the center of a butter war.

Not many houses move across borders, this one did it twice.

A tribute to smugglers and the Butter Wars.

A reconstructed World War I-era communications array that was once hidden in plain sight.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

A rare double mill nestled along the banks of the Aa river.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

The remnants of a refugee settlement for Belgians during WWI.

No need to strap in for a “ride” on this walkable roller coaster.

This painted Lego bridge is the product of over a century of locomotive history.

Largest illuminated advertisement sign in the world.

This 19th-century fountain features sculptures of little gnomes that help with chores.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This mine is home to the largest man-made hole in Europe.

This highrise residential building looks mundane, but hides a water tower and WWII bunker.

A uniquely preserved neo-Gothic church that is now home to a collection of art and woodcarvings.

Once a forgotten city-wall tower, now the centerpiece of an underground bicycle parking.

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

An idyllic hotel that gave its name to a supposed shadow government.

This may be the world's only drive-through windmill.