Slippy maps is the baseline nowadays but it wasn’t always. Example video showing terraserver: https://m.youtube.com/watch?v=uaQNdMQ3NNk https://m.youtube.com/w

Slippy maps is the baseline nowadays but it wasn’t always. Example video showing terraserver: https://m.youtube.com/watch?v=uaQNdMQ3NNk https://m.youtube.com/watch?v=uaQNdMQ3NNk As others mentioned there are also many maps meant for printing. There are also map servers that will generate a viewport-specific image (typically meaning no on-the-fly rendering) on demand.