Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

270 million year-old forest of stone.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The Twisted Trees of Alticane are an unnerving grove of Quaking Aspen, apparently mutated from a single source, giving them a twisted and unnatural appearance.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Towering basalt columns, a creation of fire and ice.

Rippling sand dunes frozen in the Arizona rock.

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

Stunning wetlands ablaze with pink lotus flowers.

Iran's colorful terraces are a rare geological masterpiece.

This abandoned fishing settlement may well be the greenest village in the world.

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

The hottest place on the planet.

Dramatic river bend surrounds a natural red-rocked pedestal.

A canvas of crops grow from vibrant red soil in this terraced farmland.

Bohol's mysterious brown hills.

This small group of sand dunes manages to pack in a strange rainbow of colors.

The massive white mound and accompanying water terraces are a striking geological oddity.

Tubing through a cave lit with glowworms is a magical underground experience.

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

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.