An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Stonehenge has nothing on Castlerigg’s views.

The final resting place of soldiers' loyal canine companions.

A open air theatre built on a cliff by an eccentric British woman.

The stately remains of Llywelyn the Great's mighty fortress.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

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

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

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

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

Museum about life, death, and cannibalism in the Stone Age.

The heads of two giant mythological water horses honor Scotland's horselord past.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

Surreal riveted sea forts once protected the Kent shores from German attack.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

The fountain marks the area where hundreds of accused witches were burned at the stake.