Casa Grande Haunted Domes

The buildings were erected in 1982 for a computer hardware business that never materialized. Lonnie Mikkelsen, who worked on a construction crew that built the domes, told PinalCentral earlier this year that the domes were erected like an upside down swimming pool, with the concrete formed around a big balloon. Talk from the locals about the domes concerns ritualistic witchcraft and satanic worship. “Stay out of there and don’t go into the tunnels” is the refrain, and indeed there are tunnels under the Eastern end of this facility. But despite all the stories whether anything more sinister than underage beer-drinking, ghost stories, and the occasional squatter spending the night, has ever happened is unknown.