>>>>>>>>>>>>>
The one I like is the Shabbat Elevator you can find today in Israel. As pushing a button constitutes work these elevators spend the entire Sabbath rising and falling; stopping on each floor as they ascend and descend. You can simply step into them and step off at your floor without violating Shabbat. <g>
>>>>>>>>>>>>>

You don't have to travel that far. A few public buildings (like a couple of Hospitals I know) have them in Miami.