Balloon lifted lift

A lift runs as usual in its shaft, but instead of being attached to a counterweight, the cable goes up through a hole in the roof of the building, and is attached to a balloon.

The penguin lift is raised and lowered within the building by increasing or decreasing the density of the balloon, perhaps by adding or removing gas through a long flexible pipe. More beautifully but more wastefully, hot air balloons could be used, and the altitude controlled as usual by flaring gas into the balloon.

A swivel pulley on the roof of the building allows the balloon to blow with the wind. On particularly windy days, or in coastal areas where there is always wind, the balloon could be replaced with a very large kite.

Saves floor space within the building because of the lack of a counterweight shaft; also allows quick visual indication of where the lift(s) are from outside the building, by observing the height(s) of the balloon(s).