in all ofjordan — but having all of these people here can bring problems. the delicate rocks are easily damaged by tourists touching the monuments or walking off the designated trails, especially in places where excavations are under way. but now, there's a project aimed at getting tourists themselves involved with the conservation of the monuments, to help protect one of the most threatened sites in the whole of petra. this is the temple of winged lions, a religious complex built in around 27 ad. i'm liking your office, glenn. i like what you've done with it. no, this is a beautiful place. this is... voice—over: glenn is in charge of the site, and tells me how the problems here started in the 1970s, when the temple was first excavated.