So recently I was having a stroll around a huge, indoor recreation of a desert ecosystem - as you do - and happened upon this.
More specifically I was at Burgers' Zoo in Arnhem (the Netherlands), and the 'dig site' was one of many great touches in the 'Burgers' Desert' indoor 'ecodisplay', sitting alongside living dinosaurs like the North American road runner (which apprently no one can walk past without saying "Meep meep!"). Of course, I couldn't help but wonder which T. rex specimen this skull is a cast or replica of. For my money it's the specimen formerly displayed in the Natural History Museum in London, which Darren Naish wrote about some time back. Actually, the half-mandible from that mount is on display again now in the dinosaur gallery, while the half-cranium is on temporary display in the Age of the Dinosaur exhibition.
In any case, I wasn't expecting to run into a Tyrannosaurus skull in the middle of a zoo, but then it is the amazing Burgers'. Do let me know of your thoughts!