An Irish Memorial commemorating those who perished due to potato blight.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Yo, Adrian!

The world’s first penitentiary, meant to be humane, drove men insane.

Alexander Hamilton’s creation caused quite a bit of controversy.

Dr Barnes' $25 billion private collection of art and arboretum.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The boulder on which Alexander Hamilton laid his head after a deadly duel can still be visited on the New Jersey coast.

The remnants of a failed socialist commune can still be found just off a California highway.

See massive fossils that are over 200 million years old in northeastern Arizona.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Inside this store, a mysterious statue draws visitors from the world over.

A Wild West jailhouse that slid down the mountainside.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This historic national park is covered in the stunning ruins of red rock pueblos.

A spiritual vortex among the red rocks in Sedona.

A mysterious spirit totem at the edge of Navajo lands.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

Ancient pueblos built into the base of a natural canyon wall.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

A multimedia experience that chronicles the atrocities of racism.

Raised illegally, Reggie now lives at the Los Angeles Zoo after authorities spent years tracking him down.