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

This observatory within Europe's first dark sky park offers stunning views of the night sky.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

At high tide this strange footbridge appears to have no purpose whatsoever.

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

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

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

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A wacky, UFO-shaped house in a suburban neighborhood.

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

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

A 30-acre garden inspired by the principles of modern physics.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

Scotland's first free lending library, which protects literacy through inheritance.

These quaint cottages feature built-in signaling devices for fishermen.

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.