The oldest working camera obscura in the world sits on the top floor of an old windmill tower.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

This Neolithic Stone Circle is the largest in mainland Scotland

A 17th-century building that once served as the town's courthouse and jail is now a thriving art center.

A tour to spot Scotland's once-vanished birds of prey.

A historic pub in the front room of a Victorian-era house.

An optical Illusion once believed to be an electrical phenomenon.

This modern labyrinth lies in the shadow of a ruined medieval castle.

Now in ruins, this castle stood for centuries and saw a number of gruesome events.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

The overgrown ruins of this once majestic castle sit forlornly in the Scottish countryside.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

Nature puts on a spectacular show at this blowhole on the eastern side of Gran Canaria.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

At a mile long, the Fort Madison Bridge is the largest double-decker swing-span bridge in the world.

A hundred copies of Antony Gormley's naked body stare out across the water.

Three bridges straddle a stream, one stacked upon the other.

A circle made up of 19 boulders has stood in Scotland's Bladnoch Valley for some 4,000 years.

This fortified L-shaped tower is the ancient seat of clan Hannay.

The oldest natural aquarium in the United Kingdom.

A plaque marks the humble origins of an artistic muse who embodied the ideals of Pre-Raphaelite beauty.

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

Site of the first hot air balloon flight conducted by the first English balloonist.

Originally founded in 1654, this coffee house claims to be the oldest of its kind in Europe.