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

An Australian lake whose pink hue defies scientific explanation.

One of the few places in the world home to living stromatolites.

A stray meteor left this picturesque hole in the Australian outback.

Clusters of huge boulders in the Australian Outback.

Australia's first opal field led to a mining rush in the 1890s.

Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

An incredible garden taking over the interior of a massive sinkhole.

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

A clear example of the process of erosion in action.

Tribute to the Chinese people of Young and Australia.

Final resting place for hundreds of prisoners of war.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

This massive water spout has been luring visitors for hundreds of years, some to their death.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This strange geological landscape erupts with sudden bursts of water.

The glacier tucked within a New Zealand rainforest.

A glacier pocked with ice caves and surrounded by rainforests.

It took millions of years for these rocks to resemble their mammalian counterparts.

Highly spherical boulders on the shores of New Zealand.

5,000 skulls in memorial to those killed by the Khmer Rouge.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

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

Spectacular rock formations host dinosaur footprints and an old hydrotherapy pool.