Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

This secluded Iceland farm holds the collected works of one rural sculptor's creations.

This replica Viking village was created for a film that was never shot and is now open to visitors.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Climb right into the heart of this colorful Iceland volcano.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Staves, storm-calling, and of course, necropants.

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

A trio of hidden hot tubs takes advantage of Iceland's natural geothermal vents.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

This elegant arc of a waterfall marks a religious turning point.

Rising from the sea like a stone monster.

Iceland: home to volcanoes, waterfalls and, apparently, Santa?

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Elevated freight railway turned wildly successful urban park.

Tucked in the back of this amazing antique store is an important piece of medical history.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The largest medical and anatomical collection in France lies hidden from the public.