Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The world's brightest bioluminescent bay.

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

Cannon designed to fire an atomic warhead.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

An enormous concrete structure built over a nuclear crater.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

A remote forest of stone pillars along the Lena river.

The world's second-largest excavated hole.

A fiery crater has been burning in the Karakum Desert since 1971.

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