An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Whitewashed mosque contains the world's largest carpet.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This former steel and coal plant is now a neon-lit industrial fantasia.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This museum houses an imposing skeleton army comprised of creatures great and small.

The once highest point in China blends symbolic design with a kick of adrenaline.

A fearsome dragon clings to a corner of Munich's city hall.

Go surfing on this urban wave, "hacked" by local surfers.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

The most famous location in China was home to whole dynasties worth of imperial rulers.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.