An homage to everyone's favorite prehistoric cartoon family.

A sharp bend in a dramatic river canyon cut through red rocks.

This fireplace-turned-monument pays tribute to the assassinated U.S. president.

This Old West prison built into the side of a cliff was said to be inescapable.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

A large boulder marks the place where the island of Manhattan was purportedly "sold" to the Dutch.

The longest step street in the city.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Little Red Lighthouse under the George Washington Bridge.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A cemetery housing wild west legends in South Dakota.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

A fitting attraction for the corn capital of the world.