The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

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

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

Hiding the longest subterranean river known in the world.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

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

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

This abandoned Belgian fortress is purposefully being left to nature.

A once-magnificent collegiate church is falling into ruin.

Lavish royal estate punctuated with heated greenhouses.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

The Belgian library displays burned books that were salvaged from the fires of both world wars.

Ancient man-made caves underneath small town Belgium.

One of Belgium's oldest hospitals saw patients from the 13th to 20th centuries before becoming a museum.

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

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