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

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.

An experimental, automotive replica of Stonehenge.

Metal sculpture folk art lining the Kansas Highway.

Even with its slightly risible name this colossal cross is still able to inspire awe.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

An enormous natural sandstone bridge in Kentucky.

This abandoned prison castle has become an imposing gallery of graffiti art.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

Curious rock formations in a tiny Kansas state park.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.

The world's most elegant power lines.

A Spanish town built into the cliffs.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Moorish signal station on a stratgic rocky outcrop.

Spain's stunning solar energy plant.

The world's largest wooden structure.