 The town's key features are a 21-foot-tall stone-and-glass pyramid, a church on a man-made hill, and the Museum of History in Granite, which Istel has been developing since the town's founding.The museum consists of dozens of granite panels, most of them over 100 feet long and weighing approximately 500 pounds.Etched on the panels is a historical record of humanity as chronicled by Istel.