An enigmatic natural rock formation with a manmade passage cut through the center.

This huge ship ran aground and has simply been left to sit there ever since.

A stretch of land where the sour-sweet vegetable is cloaked in darkness and grows so fast you can hear it crack, squeak, and pop.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

The Icelandic Sea Monster Museum explores the area's history of aquatic cryptid sightings.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

An impressive collection is dedicated to the legendary beast.

The premier place to experience the Victorian imagining of the steam-powered future.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

A real-life replica of a home from Hayao Miyazaki's beloved movie "My Neighbor Totoro."

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.