Myst Online: Uru Live has a large history spanning many years of developments. There is a great deal to see in Uru, and evidence for that is here on this page. Be sure to check out the large amount of screenshots!
The screenshot gallery page contains a large number of in-game Myst Online: Uru Live screenshots spanning many stunning ages in breathtaking environments.
A great deal of concept artwork was created during the Myst Online: Uru Live development process. The concept art page contains a handful of images of various ages and environments. You might even find a hint or two for a puzzle or two in some of the sketches!