One of the most well-preserved temples of ancient Egypt.

Ozymandias’ time-keeping temple.

Hidden in the hills is a mysterious stone structure, known only to a few.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

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

This hunter-gatherer architecture is believed to be the oldest religious complex known.

This famous city eluded concrete detection until the early 2000's.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

David Sedaris called it "The greatest shop in the world."

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The largest and most famous wax anatomical collection anywhere in the world.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

The excellent Swiss museum of witchcraft is led by a modern witch.

A beautiful but toxic fountain of mercury.

An enormous dragon scales the walls of this 17-story temple.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.