The largest shot tower in Australia is a unique reminder of industrial ammunitions history.

A youth-centric science center hides an industrial triumph.

An obsolete form of timekeeping still marks the hour in this adapted 19th century lighthouse.

This giant dish located in a sheep paddock was the primary receiver of Apollo 11 TV transmissions.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

Is there such thing as too many fruit bats? Not anymore.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A clear example of the process of erosion in action.

Nature is leading a successful mutiny on this century-old freighter.

This is why we can't have nice things on the Incan Trail.

These ruined Incan mausoleum towers still bear carvings of sacred animals on their blocks.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

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

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

An unexpected desert oasis in South America.

The Uros people live on floating reed islands in lake Titicaca.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.