The tallest bridge in California was constructed for a project that was eventually cancelled.

Art Deco stylings conceal the true nature of this bridge.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

Built to hold the worst of the worst of the Nazi war prisoners.

A site of pagan worship which still attracts people looking for fairies.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The capitol city's oldest existing cemetery.

A tiny survivor of the Donner Party disaster.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

This 19th century train workshop is a treasure trove of railroad history.