A little-known hot spring haven right below the highway.

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

This museum offers an actual time machine back through Colorado's past.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

This hot dog-shaped diner has moved all around Colorado, but has never been to New York.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

No Gordon Lightfoot song, only a barebones monument to greed.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

The attic of a four-century-old canal house hides a clandestine church.