The enormous isokinetic structure hangs within a science center in Estonia.

The oldest continuously operating pharmacy in Europe.

These warring psychedelic crags commemorate an unsuccessful military operation.

A musical instrument played by the sea.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

The highest lighthouse in Scotland shines from an abandoned island.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

Historic church where a number of Shakespeare's actors are buried.

Where the sleeping monsters of Scotland's oil industry are left to rust.

England's foremost purveyor of funeral furniture hasn't changed a bit since the 1960s.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.