Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

This rough experimental house was created by flooding a dirt hill with concrete.

Open air sculptures by an eccentric and loin-clothed hermit.

The oldest Roman lighthouse still in use.

Giant granite sculptures representing family on the northern coast of Spain.

The remains of an encyclopedic sculpture garden later used as an internment camp.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

A small house in Tazones, completely covered in shells.

A historic Christian shrine nestled within a spectacular natural cave.

Stormy conditions send jets of seawater bursting through holes in the cliffs.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A living art gallery painted on a canvas of Monterey pine trees.

A charming Spanish village sits atop this natural limestone overpass.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

Home to the most complete dodo remains known - one head, and one foot.

This antique prison is a tourist attraction with a sordid past.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

Cliffs full of fossils at the portal to England's Jurassic Coast.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

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