Bell towers of churches struggle to arrive as up as posible, to try to reach the heaven. That´s why I presume that bells are located as near as posible of the heaven, like touching the sky, so the sound come from much above as posible. Here there´s an example in a simple church, the steps are going up, to the heaven, in order to reach at least the bell.
Picture taken in Sant Rafael church at the center of Ibiza´s island.