A neolithic dolmen that was rebuilt after collapsing during the 19th century.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

The only pub in the world surrounded by an ancient stone circle.

The world's largest model of our planetary system.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

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

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A beautiful maze marks where three countries meet.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

These barriers stand as stark reminders of Northern Ireland's troubled past.

Belfast's namesake river still winds below the city center, hidden from sight.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

The lake that fills and empties itself at random.

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

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

One of the world's smallest prisons boasts just two small cells.

The elegant manor house where Kaiser Wilhelm II lived in exile after World War I.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

A little sculpture with a large wardrobe.

Brussels' favorite peeing boy has a sister.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.