The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

The Netherlands' first car tunnel has an unusually rectangular shape.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A misnamed well, with a deep dark past.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

A Serbian church lit by chandeliers made of weapons.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Mosaics, storks, and brothels—this ancient city has it all.

Traditional 11th-century outdoor tannery.

The oldest known university in the world is in Fez, Morocco.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A pair of connected skyscrapers form this symbolic gateway.