This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

The fifth-longest natural arch in the world, and the longest outside China.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

One of the first intercontinental ballistic missile sites in the United States.

Home to items never before seen by the public.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

An emporium for the weird, creepy, rare, and just plain gross.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

Each year, one talented artist puts on a show sculpting twelve butter-based busts of dairy princesses.

A piece of solitude and tranquility in the heart of East Saint Paul.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The largest source of fossilized insects anywhere.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

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

Even in death, he's still your huckleberry.

America's largest man-made forest was planted in an effort to bring back the past.

An experimental, automotive replica of Stonehenge.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.