This pair of Australian "waterfalls" appear to be falling straight across the land.

This large lake in Central Australia contains an estimated 600 million tons of salt.

A boiling wellspring flowing with natural gas burns in a continual blaze.

Created as a coal reserve, it is today a natural park with stunning wildflowers, ancient marine fossils, and remnants of a 19th century mine.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

Plains of ash and pair of semi-active volcanoes contribute to the otherworldly beauty of this little-known Vanuatu island.

What once claimed to be the world's tallest single-family wooden structure house.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.

The massive steel ring looks like it could be China’s first Stargate.

Jurassic theme park in the small town of Erlian.

Dinosaur eggs were first discovered at these fiery red cliffs.

Sumptous memorial to a controversial independence.

This cavernous swimming spot doubles as a home to the largest known colony of bats in Central Asia.

The hottest, driest, and most scenic desert on Earth.

This remote stretch of sand is a penguin lover's paradise.

This small city park is best known for the nightly convergence of thousands of shrieking parakeets.

An explosion of natural color known as "the river that ran away from paradise."

Extravagant mosque honors modern Islam.

Once a bustling fishing village and trading post, today these Cape Verde ruins provide a home only for seabirds and turtles.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

Over two-thirds of the world's population of giant tortoises live among this coral formation.

A newspaper editor turned this abandoned island into a tortoise nature preserve that's now the world's smallest national park.

The world's largest bioluminescent area was undiscovered by science until 2005.

These small, spectacular monkeys are making a comeback after deforestation destroyed much of their rainforest habitat.