Epigraph researcher John Ruskamp claims these symbols shown in the enhanced image above, found etched into rock at the Petroglyph National Monument in Albuquerque, New Mexico, are evidence that ancient Chinese explorers discovered America long before Christopher Columbus stumbled on the continent in 1492
They say could have been inscribed there alongside the carvings of Native Americans by Chinese explorers thousands of years ago.
John Ruskamp, a retired chemist and amateur epigraph researcher from Illinois, discovered the unusual markings while walking in the Petroglyph National Monument in Albuquerque, New Mexico.