Reprazent1 wrote wow love these - very album cover like
Thanks! Yeah these filters have a very 70's / Pink Floyd feel to them. My son asked me what on Earth they were for, why were they made, and who used them? So on YouTube I showed him the acid trip scene from Easy Rider. No actual prism filters in that, but the same aesthetic. He got it (although he said, "wow, movies used to be bad").
Musicman wrote Not that I've ever been to California, but that looks like Frank Lloyd Wright's Marin County Civic Center building .
You are correct!