A warning of what lies ahead
 
When cool people drove cool cars
 
At your own risk
 
 
At the top. A typical 30's Westinghouse 4 car "geared traction"elevator system
This is cool. This is the hole made by the traction sheave and ring gear assembly that was unbolted from the elevator motors,and then rolled off the roof,falling 10 stories,and landing on the roof of the lobby area at the entrance to the building.It must have taken some well motivated individuals quite some time and effort to pull this off.