The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

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

A little-visited waterfall in an otherworldly landscape.

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

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

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

A winding, blood-red tunnel of hardened lava navigable by foot.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

An encyclopedic collection of mammal penises.

Climb right into the heart of this colorful Iceland volcano.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Walk in the footsteps of the gods and straddle two tectonic plates.

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

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

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.

This 19th century train workshop is a treasure trove of railroad history.

Puzzling...this tree looks like an assemblage of dismembered monkey limbs.

A tiny survivor of the Donner Party disaster.

A working miniature city designed to teach kids about safety and presumably city planning.

The California capital city once stood 10 feet lower than it does today.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.