An encyclopedic collection of mammal penises.

The largest whale museum in Europe allows visitors to walk among life-size giants.

A haunting collection of the vanished and disappearing natural world.

As the aging humans of this Japanese village die off one local artisan is replacing them with eerie homonculi.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This ancient stone necropolis is in danger of disappearing.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

A garden of flying flowers.

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

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

Sloth rehabilitation center in the jungle of Costa Rica.

Sacred Buddhist home of some spiritual monkeys.

Hot springs monkey spa in the middle of Hell's Valley.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Bioluminescent firefly squid light up this Japanese fishing port.

The world's brightest bioluminescent bay.