Liechtenstein's royal family calls this medieval alpine castle home.

Baroque celebration of the end of the Great Plague of Vienna.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Carved fountains poignantly placed in parks and in front of special monuments.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This sublime architectural marvel is a rare example of an expressionist church.

Copenhagen's celebrated theme park and gardens.

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

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

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

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

This magnificent church allows travelers along one of Germany's busiest roadways a chance to rest and reflect.

A striking 12th-century-style castle built on the edge of a cliff.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

These imposing walls and towers look more like the ruins of a fortress than a monastery.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

The ruins of a medieval monastery named after a type of tree.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.