X-Plane.Org user Xnoopeex has kindly made available worldwide photoscenery for XP.
It’s set at a low zoom level of 13 as it is principally intended for high-level, long-distance IFR flights.
There is some configuration to be done, including JPG-DDS conversion using a tool that is specified within the text.
It’s an easy, time-saving, one-stop shop for global photoscenery.
For higher quality as well as autogen, you can always easily create your own subsets using Ortho4XP.