A true roadside icon standing on the same plains that the herds once roamed.

The world's largest Holstein cow.

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

Few other hotels can rival the grandeur of the Castle in the Rockies.

The only road through the heart of Glacier National Park.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

An architect's childhood fantasy treehouse made real.

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

A beautiful geyser under environmental threat.

The remains of an early 1900s dude ranch that operated until the 1970s.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

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

This iconic science fiction house still looks like something from the future.

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.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

One of few remaining antique carousels with stationary animals in the U.S.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

A mini Wrigley Field for mini baseball players.