Subscribe | UPI Odd Newsletter Subscribe Dec. 8 (UPI) -- A mysterious monolith was found outside a Texas shopping center, just days after similar discoveries in Utah, Romania and California. Visitors to The Substation shopping center in El Paso snapped photos of the silver-colored metal structure spotted next to the road Monday. Advertisement The monolith's origins were unknown. The structure appeared in the wake of similar monoliths that were discovered -- and subsequently removed -- in Utah, Romania and California. It was unclear whether El Paso city officials would have the monolith removed. Read More California monolith becomes the third to appear and disappear Officials: Utah's mysterious 'monolith' has disappeared