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

Enter the world under the hill at this ancient UK burial chamber.

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

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

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

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.

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

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

This small, easily-overlooked sculpture recalls the first time Graz saw a live elephant.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Designed to illustrate two parts of the human psyche.

A public art piece that barely gets recognized, but then that might be the point.

The abandoned personal amusement park of the King of Pop.

A popular winter vacation destination for migrating monarch butterflies.

California's largest steel arch bridge.

The beautiful behemoth is one of the largest trees of its kind in the United States.

This house is a mosaic of tiled artwork sourced from local artists.

One incredible room in the Santa Barbara Courthouse is covered in wall-to-wall canvas murals.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

Happy harbor seals frolic and snooze on this warm, sandy stretch of coast.

An outdoor display of military missiles developed at Point Mugu Naval Base.

The largest collection of two headed animals in the world.