A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

The only castle in North America to ever house European sovereigns.

The F1 Mexican Grand Prix circuit goes right through the middle of this old baseball stadium.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

This floating sculpture of ice is a poignant reminder of nature's power.

Tens of thousands of tiny bottles stuffed with various items.

This eye-catching roundabout sculpture commemorates one of England's best World War II-era "shadow factories."