Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Walk behind a 50-meter-high waterfall.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

Walk 2,300 feet above the ground on the "Troll's Tongue."

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.