SnowQueen,sorry for not answering sooner,got held up so i couldn't come to the net for a few days.The answer to your q would be no the last pic is not a shrine,it's actually a local bath (think that's how the translation goes) it was build i think over 600 years ago(if i'm correct) it's called Hammam-Vakil and i found this site if you wan't to learn more
http://en.wikipedia.org/wiki/Shiraz#Main_sights,i have more photos of that place if you're interested.And yes Shiraz is a beautifull place to visit especially in the late september.and by the way the city is very famous for it's wines:D