Abseiling is a procedure that uses ropes to put a workman in an otherwise inaccessible place. The video below is an abseil at Burj Kalifa, the highest building in the world. The location is on the mast at the very top of the building. The job was to seal several light fixtures located in the mast. Unlike Hollywood, there is no stunt man and no FX camera tricks. The fall is over 800 meters. You do the math.
10 minutes of work but years of preparation.