Final resting place of Antarctic explorer Ernest Shackleton.

This red lake 4,000 meters above sea level is home to rare flamingos.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

Stenciled handprints and wall paintings dating back 10,000 years, some of the earliest forms of cave art.

An enchanting rocky island of scraggly baobabs surrounded by an ancient sea and sprawling salt pans.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Natural time capsule containing an alien ecosystem.

A seemingly endless landscape of pure salt stretches far across Bolivia.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Thousands of birds nest in the cliffs while arctic foxes prowl below.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

They squeal, they nosh, they look like predators.

The world's largest aggregation of great white sharks is at a mysterious spot in the middle of the ocean.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

Haven for Cape Fur Seals, until the Ring of Death of jumping Great White Sharks arrives.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A salty cave excavated by elephants and the location of a deadly disease vector.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

A hollowed-out baobab that became the horrific final resting place of leprosy sufferers, with gruesome evidence to prove it.

Zambia's smallest national park is home to one of the world's largest annual mammal migrations.

Camels and crocodiles share the black waters of this stunning Saharan oasis.

A neo-Gothic castle in the Argentinian countryside.

An Argentinian businessman facing terminal cancer built this whimsical medieval village using salvaged materials.