Places skimerer Wants to Go

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

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

White llama terraces dazzle in Peru's "other Machu Picchu."

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

This stone complex marks the urban center of a lost civilization.

A remarkable geological formation resembling a forest made of stone.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Staves, storm-calling, and of course, necropants.

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

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The world's second largest single-dish radio telescope, once used to contact E.T.

On this Puerto Rican island, many abandoned naval ammunition bunkers sit open while a few have been padlocked by locals as personal storage.

The world's brightest bioluminescent bay.