Here are some turtle pics (of only one turtle really) from the BioDome in Montreal. It is an indoor zoo, where it is organized into 4 zones (tropical, forest/northern, ocean/coast, arctic/antarctic). It was really good experience, I love animals, and most animals are free roaming (especially the bugs and birds), so its actually like a outdoor experience where you have to go and look for the animals. Though there are signs showing whats in there, there is no indication of where the free roaming animals are, so you would have to look for them. Everything is designed to imitate their natural environment (vegietation, rivers, temp and humidity). 
Here is an adult specimen of yellow spotted river turtle (Podocnemis unifilis), it is an adult specimen at about 35cm SCL.