This salt marsh in Southern France is as pink as the flamingos that inhabit it.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This statue of a studious young woman stands at the site of Leuven's first college to accept female students.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

A massive, gleaming sea turtle with a rider atop its shell looks out over the horizon.

A jazz band formed by African water animals in the heart of Flemish Brabant.

The world's tallest boat lift stands as a massive piece of industrial tourism.

A fascinating and enormous collection of natural history exhibits stained by a dark colonial legacy.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

Stocking up on the world's best beer requires a pilgrimage to a monastery drive-through.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

A giant bug impaled on a 75-foot-tall needle.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

A once-magnificent collegiate church is falling into ruin.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

The highest point in Belgium is a staircase to nowhere.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

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

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

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