The cardinal directions, set in stone.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

One of the few places in the world where visitors can walk alongside fossilized tracks from 80 different dinosaur species.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This eclectic collection documents the wild legacies of "America's Wickedest Street."

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

This massive library holds what was once the largest book collection in the world.

An old train trestle re-imagined as an Egyptian obelisk.

America's only nuclear missile silo open to the public.