Wow, cool. With the new Google Earth plugin for the browser stuff like this should become more and more common.
I heard a little about this being in the works, and they had a partially built building in Epcot's Italy along with the Swan and Dolphin hotels. Much of the Vegas strip has been modeled as well.
Hmmmm...I can only see the castle (which looks nice by the way).
It's all there... check out Epcot, that gets quite detailed (including Nemo & Co infront of The Seas and the signs infront of Mission:Space)