A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

The decaying ruins of a failed mining company’s water diversion project cling to the side of a desert canyon.

A hotel with a rich Wild West history of miners and bootleggers.

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.

Two creeks flow out of either end of this canyon in opposite directions.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This super steep hike ascends 2,000 feet in less than a mile.

This spectacular track has run continuously since 1882.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A fitting attraction for the corn capital of the world.

An experimental, automotive replica of Stonehenge.

One man's quest to save his town with a trail of record-breaking sculptures.

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

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

The world's largest Holstein cow.

This sparsely populated town offers a look back in time.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

The remains of this hell for leather wild west town can still be found in the Arizona desert.