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

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

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

This Scottish burial tomb once held hundreds of ancient eagle bones.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

This remote Scottish isle is only inhabited by seals, birds, and the memory of a tragic settlement.

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

During this Shetland Islands celebration, hundreds of torch-carrying "guizers" lead a procession to burn a viking longboat.

On a remote island, legend has it that a fiddler and his wife were turned to stone.

Despite finally receiving electricity in 1970, this tiny town is now deserted.

The abandoned village of Skarð aptly illustrates the idiom "Don't put all your eggs in one basket."

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

This mysterious, medieval cathedral remains unbuilt but fiercely protected.

This historic black and white monastery is one of Bulgaria's architectural jewels.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

This isolated island is often capped by its own fluffy cloud.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

The walls and streets of the ancient city are peppered with penises.

In medieval times this small stone seat was used as a bizarre way to punish insolvent debtors.