Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Malaysian fireflies create a dazzling display as thousands light up in unison.

The central mosque of this Mali town is entirely built from mud.

The largest single concentration of harmless garter snakes in the world is a writhing Canadian serpent orgy.

Fire meets ice at the southernmost volcano on Earth.

A city continually buried under the ash of a volcano that has been erupting for more than 15 years.

An isolated dive site teeming with cnidarians.

A geological bull's-eye visible from outer space.

This golden temple is surrounded by hundreds of stone tablets that comprise the "world's largest book."

Surreal riveted sea forts once protected the Kent shores from German attack.

Rock-cut caves and 7,000 Buddhist sculptures carved into the nearly sheer face of a sandstone mountain.

A spherical "micro-nation" in the heart of Vienna.

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.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

The remnants of an early American attempt at missile defense.

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

One man's artistic vision is a small town government's legal battle.

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

A harrowing trail up a mile-high mountain.

Houses are tucked between, on, and underneath giant boulders.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

Hundreds of wooden coffins dangle from cliffs and caves in the Philippines.

A vertically floating hemlock controls the waves and weather at Crater Lake.