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

Legends surround this jagged rock formation in the New Mexico desert.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

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

A popular rock that acted as a waymarker for American pioneers.

Oddly shaped rock formation, misassociated with a nearby utopian community.