An encyclopedic collection of mammal penises.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

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

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

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This monument to one of the largest science fiction games of all time bears the names of hundreds of thousands of players.

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

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

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

A modern-day Lascaux cave underneath Paris.

A museum of magic with a Sadist past.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The oldest surviving synagogue in New York City is now a soaring art space.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

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

A crumbling hospital from the 1850s on Roosevelt Island.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A semi-scholarly approach to sex.