We have been reading the Left Behind series and are currently in the book called Desecration. They have been talking about Petra, and we wanted to see pictures of it. At the same time, I came across some articles saying that Google has begun hosting the images from Life Magazine. You can view the images by adding “source:life” to your Google Image Query. I found a few pictures of Petra in the collection.
Here are some more links about Petra: