Artwork tucked within the trees greets visitors with surreal sonic experiences.

Because sometimes you need to make a batch of frites even when the stores are all closed.

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

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

A fantastical bed and breakfast with magically unique rooms.

Christ's blood preserved in a Belgian town.

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

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

Hiding the longest subterranean river known in the world.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

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.

Brussels' favorite peeing boy has a sister.

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

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

A set of beech hedges planted in the 19th century forms a tunnel that takes on a different appearance in every season.

A Dutch museum preserves the world's most diverse collection of vertical slices of soil.

This century-old street sign is a forgotten remnant of the old city.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

It's forbidden to dig within this ancient Roman fort hidden beneath a playground.

A tiny house showcases the busy life of a local gnome.

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

An unassuming rod in the Netherlands was once the old standard unit of length for the entire Dutch empire.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.