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

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

Even after the church tried to wipe the practice out, this pagan festival lives on each year in a small Scottish village.

Described by William Wordsworth as a "World of Wonder."

Wonderfully preserved Victorian factory, complete with a preserved steam powered engine house.

This once-majestic, now-abandoned Victorian castle has seen better days.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

Accessible only at low tide, the deserted island is dotted with World War II ruins.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Spend the night in this formerly abandoned traditional Scottish village.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

An American ghost town hides along a side street in Scotland's capital.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Wander through a maze of empty tombs to find the poles used to hang revolutionary patriots.

An intricate network of underground tombs carved into volcanic rock.

An old spa town in the mountains of Romania where, according to legend, the great hero Hercules once bathed.