A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A Bibliophile's Dream.

A monument to the art of slicing people open.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This shop for all your super spy needs hides an educational secret.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A hidden oasis in the heart of Minneapolis is also an Important Bird Area.

Roadside Americana, fairy tale characters, and Austin quirkiness come together at this magical course in the heart of Texas' capital city.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

A sulfuric martian landscape that looks far better than it smells.

This tiny museum's sizable collection is jammed into a former underground public toilet.

This fairytale-like structure is the last turf church ever constructed in Iceland.

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

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

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

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

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

A little-visited waterfall in an otherworldly landscape.

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

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

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

An encyclopedic collection of mammal penises.

Climb right into the heart of this colorful Iceland volcano.