A popular Icelandic children's story comes to life inside this cave.

A "simple-hearted artist" turned an isolated Icelandic valley into his own art museum.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

The oldest church in Iceland is one of the few to feature ornate decoration.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

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

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

A hotel with a rich Wild West history of miners and bootleggers.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This Chinese-style quartz sundial was saved in its final hour.

There are eight natural springs around town, each with a slightly different taste.

A research lab and hands-on museum where visitors can experiment with retro technology.

This interpretive path lets you get up close and personal with dinosaur bones.

A mental health hospital dating back more than 139 years, now features a museum.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

The clock that sets them all.

The largest source of fossilized insects anywhere.