George Van Tassel
Integratron : based on the design of Moses' Tabernacle, the writings of Nikola Tesla, and telepathic directions from extraterrestrials
In the midst of a career in aerospace, Van Tassel effectively dropped out. In 1947, he leased four square miles of desert from the federal government and built an "Interplanetary Airport" and a tiny restaurant, famous for his wife's apple pie, near fabled Giant Rock, a seven-story-high boulder that has since split in two.
Van Tassel claimed to have been visited by aliens in 1952, and thousands began making pilgrimages to his "Spacecraft Conventions" in the desert. He said the aliens had imparted information regarding time travel and rejuvenation.