Wallfahrtsbasilika Maria Himmelfahrt is just one of the landmarks located 0.8 mi (1.3 km) from central Tuntenhausen, so you might want to stop by for a few pics during your trip.
If museums are on your list of things to see in Rosenheim, then you might want to head to Kleppermuseum. If you want to see more of the museums in Rosenheim, Lokschuppen Rosenheim and Staedtisches Museum aren't far.