We visit High Rock Tower Park, where nineteenth century spiritualist John Murray Spear built his New Motive Power, aka, the God Machine, aka, the Infant Motor, aka, the Mechanical Messiah, all based on plans that the ghosts of Benjamin Franklin and Socrates gave him. Then the story gets weird. Photos from my visit to High Rock Tower Park Address of High Rock Tower Park: 30 Circuit Ave, Lynn, MA. A book about John Murray Spear. My Cursed Objects book is out now! Want to learn about the oddities I visit in real time? Follow me on Twitter, Facebook, or Patreon. I also write other spooky books.