Cached map tiles from publicly available aerial images (open data) provided by Bayerischen Vermessungsverwaltung.
Summary: Aerial images of Bayern with 80cm resolution (April 2020)
Source: https://geoservices.bayern.de/wms/v2/ogc_dop80_oa.cgi
Cache format: XYZ web map tiles (up to zoom level 18)
License: Creative Commons — Attribution 3.0 Germany — CC BY 3.0 DE