“What we found was that, by and large, the magnetization in the sandstone dikes is pretty uniform in direction. “If these had been a stack of bricks put in place to form these impressive planar features, each brick would have been put in place in a random fashion,” he said. Geissman tested the magnetism in the rocks and found that the magnetization of the rocks, or the time in which they were formed, were the same, concluding that the formation is natural. Rocks have the ability to permanently hold the Earth’s magnetic orientation when they are formed. “It’s not irregular in character, and I think that’s a big factor in resulting in the human thought mechanism that took place when these features were discovered.”

“The fracture pattern in these features is quite impressive,” he said. He also noticed that the pattern of the dikes was similar to that of bricks. Not only were the sandstone dike stones thin, but they could also be traced for long distances, which are unusual characteristics for dikes. Geissman is a geophysicist, meaning he studies the magnetic properties of rocks. John Geissman, a professor emeritus of geology at the University of Texas at Dallas, tested a set of rocks for an episode of the History Channel’s America Unearthed in 2012. In some of the museum’s collections, photos depict “corners” of the alleged buried city that signify that people may have carved it out. Voted the 1 Escape Room in the United States, Strange Bird Immersive brings you 'The Man From Beyond: Houdini Seance Escape Room.' We immerse your team from the moment you walk through our door, and take you on an adventure you will never forget.

Some even theorized that a possible supervolcanic eruption may have covered the possible ruins.Īt the Rockwall County Historial Foundation Museum, curator Carolyn Holt said many artifacts and clues point to a possible ancient settlement.

The wall’s origins sparked theories, including ones of an ancient civilization, evidence of UFO presence or American Indian settlements, Russo said. The known sections of the wall encompass 20 square miles. Rockwall County Historical Foundation Museum Curator Carolyn Holt holds up a map that connects known sections of the rock wall.

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