I mistakenly assumed that the whole TW tour was ripped, so I posted it here, but it seems they only stole the equirectangulars. Don't know what player the source was. Anyway if you look here and under the article at the 'related news' you will see the *ssholes also ripped pano's from
-Frankfurt am Main
And no, they did not steal anything from me, and I'm very disappointed because of that. Seems I have to create even better pano's to get their attention ;-)
On there site it's claim "TinEye is a reverse image search engine. It finds out where an image came from, how it is being used, if modified versions of the image exist, or if there is a higher resolution version.".
Not the solution to stop thieves from copying our images, but Nice tool to track your images.