A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

An ancient Viking village in North America that predates Columbus by 500 years.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Years of archaeology, just chillin' by the water cooler.

Bowl in splendor, if you're lucky.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

A subterranean playground in an abandoned slate mine.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

The most powerful waterfall in all of Europe.

This historic hotel invented the chocolate brownie.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.