Stonehenge crane
Photograph by Fox Photos/Getty Images
It required one of the largest cranes in England to lift Stonehenge's massive rock lintels during a rehabilitation project at the site in 1958. The size of the stones used to build the ancient monument—some pillars are 30 feet (9 meters) long and weigh 50 tons (45 metric tons)—and the distances they were moved have led to wild theories of supernatural involvement in the building of the structure.