Petra

http://en.wikipedia.org/wiki/Petra
http://www.visitjordan.com/MajorAttractions/Petra/tabid/63/Default.aspx
http://whc.unesco.org/en/list/326/
http://www.brown.edu/Departments/Joukowsky_Institute/Petra/
http://www.atlastours.net/jordan/petra.html

Videos
http://www.youtube.com/watch?v=VAXu4ODpqmk