According to France VFR, Paris VFR was 100% developed under the Microsoft SDK specifications, using aerial photographs edited especially for the scenery, with a definition of 0.5 meters/pixel and a LOD13 (4.75 meters) mesh resolution.
An image is worth 1.000 words, right? Here are 6.000 of them with a lot more waiting for you at the Paris VRF official website.
Screenshots of Paris VFR
Where to buy it
You can get the scenery for €39.90 and a hefty 11GB download here. The website is in French, though, the English version being disabled..