This pebble beach is so beautiful that taking its rocks is against the law.

This floating cinema brings new meaning to the phrase "going out" to the movies.

The end of times arrives, at least for the fish in the O.C. Fisher Reservoir.

This collection of unique liquids allows visitors to wander the waters of Iceland's glaciers.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

An Australian lake whose pink hue defies scientific explanation.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

Tropical paradise strewn with hundreds of World War II wrecks.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Thanks to the building of a life-giving reservoir, part of the Great Wall of China is now a dive site.

A trash dump made beautiful by nature's power.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Fire meets ice at the southernmost volcano on Earth.

Considered the most remote point in the entire world.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A limestone wonderland of water and subterranean secrets.

Enchanting cave with a river crashing through the roof.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

America's only nuclear missile silo open to the public.

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

Self-sufficient greenhouse floating on the Hudson River.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.