Floating swimming pool within a moored vessel.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Elaborate tile work in this railway station tells the story of Portugal.

Started as a kitchen garden, now the second largest botanical garden in the world.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

Once thought to be the Garden of Eden it holds a holy footprint claimed to belong to Adam, Buddha and Shiva.

This elaborate temple was built around one of the Buddha's teeth.

A blooming house of worship for the masses.

Hundreds of Buddhas in a re-discovered Indonesian temple.

This Balinese sea temple is thought to be guarded by the hundreds of monkeys that live around it.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Singapore's landscaping project is home to 18 incredible Supertrees.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Odd outsider art installations surround a Gold Rush-era ghost town.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Highly spherical boulders on the shores of New Zealand.

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

A glacier pocked with ice caves and surrounded by rainforests.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.