This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

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

The same security that protects our nukes accidentally protected a gentle herd of antelope.

This historic Union Pacific Railroad depot is a stunning symbol of American post-Civil War progress.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

A once-thriving hotel from the Old West now sits abandoned, under the threat of demolition.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

A pair of gargoyles peer into unsuspecting passengers at Denver’s conspiracy-packed airport.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

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

A crumbling hospital from the 1850s on Roosevelt Island.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

One of only two commuter aerial tramways in the United States.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

A vibrant, 100-foot-tall mural dedicated to Evelyn Nesbit, the tragic icon of the Gilded Age.