This North Carolina grave is the final resting place of the world's most famous conjoined twins.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

Opulent downtown movie theater now houses cars as an indoor parking garage.

Home to drunken tower-climbing goats... seriously.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

This sprawling bookstore spans four floors and has more than a million books in stock.

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

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

This Scottish bridge seems to compel dogs to leap to their death.

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

These fantastically named natural pools look like something out of a Scottish myth.

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

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

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

Legends say that this small island was the final resting place of the Welsh saint of lovers.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Even Henry David Thoreau found this glacial pothole irresistible.