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

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

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

In this African village, the walls of the chief's compound are painted with beautiful traditional designs.

Henry Ford's failed rubber plantation in the middle of the Amazon rain forest.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

An isolated dive site teeming with cnidarians.

An emerald-green grotto just a short trip from Austin.

The sign at the garden gate reads: "These Plants Can Kill."

Rippling sand dunes frozen in the Arizona rock.

A fifth-century temple improbably built into the side of a cliff.

Fire meets ice at the southernmost volcano on Earth.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

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

One of the world's steepest streets seems to have houses sliding down it.

A sculpture for the sun and stars, created by Nancy Holt.

A modern day curiosity cabinet.

Annual technopop celebration of peace and love.

Dr. Farid Mattar's Monument of Peace.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

Roadside collection of 65,000 signs.

An annual festival celebrating Colorado's most famous frozen corpse.