This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

Former hunting lodge of a duke who was an avid collector of impressionist works.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's most famous cemetery, with some of its most curious tombs.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

The location of this historic castle was inspired by a donkey.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Once home to a Scottish baronet, this 18th-century historic house doubles as a legendary art space.

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

This Shetland Islands bus shelter may be small, but it squeezes in a couch, a desk, some art, and even an old telly.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

A close look reveals that the Scottish monument is just slightly off-kilter.

A six-ton wedding present for the King of the Scots.

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

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

This 16th-century house tells the city's history through old artifacts and quirky tales.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.