The largest source of fossilized insects anywhere.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Abandoned silver mine strewn with wrecked and twisted structures.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

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

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

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

The childhood home of the famous general's mother is now a small, walled garden.

This tree is a living witness to the beginning of the Civil Rights Movement.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

The naval commander’s proudest moment in battle is memorialized in this unique tomb at Arlington Cemetery.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

Where pardoned turkeys once spent their all-too-brief final days.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Rowdy rebels fortified this home during the first popular uprising in United States history.