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

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.

Even in death, he's still your huckleberry.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

The clock that sets them all.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The highest bridge in America was built for an almost unnervingly small amount of money.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

Home to items never before seen by the public.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

"The House That Love Built" is shying away from "The House That Ghosts Love."

This famous bridge twisted itself into oblivion, but not for the reason you might think.

A walk through the historic city center, under the streets of Seattle.

The only road through the heart of Glacier National Park.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.

This amazingly preserved Gold Rush town is a historian's dream.

An entire town preserved as a historic landmark.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This erect, phallic geological spire wasn't always named so domestically.