I'm going to Brixen tomorrow, and while researching it in preparation I discovered that if you stay in a hotel there you get issued a BrixenCard allowing you free transport on buses within the entire S Tirol region, and some trains too (https://www.brixen.org/en/my-holiday/brixencard).
I'm going to be spending 3 weeks moving around the dolomites, are there any other similar cards I'll be able to get from various places?