This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

A temple to modernity, tucked away amid Barcelona's more well known museums.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A collection of biblical memorabilia.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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

A floating cat sanctuary on an Amsterdam canal.

Cat art as far as the eye can see.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

To the famous surrealist artist, liberty required two torches held high.

Museum on French naval history, with magnificent figureheads, a historic diving suit, and a boat used by Napoleon.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Ancient paintings known as the "Sistine Chapel of Cave Art."

One of the greatest maze designer’s greatest mazes.

The history of radiation is on safe display at the foot of a radiation science laboratory.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

A surrealist timepiece by the artist of melting clocks.