The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

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

Medicinal spa created with the discharge from a geothermal energy plant.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.

This frequently-photographed waterfall takes only a short hike to visit.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The monster at the center of the Darwin Center Spirit Collection.

The biggest museum dedicated to insects in North America, one of the largest in the world.

They squeal, they nosh, they look like predators.

Sloth rehabilitation center in the jungle of Costa Rica.

The giant squid's 27-foot-long corpse lies preserved within a Sarasota aquarium.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

In Texas, a replica Irish castle is home to a charismatic pack of llamas.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A kaleidoscopic warehouse-maze of handmade neon signs.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.