The Treasury - Al Khazna is almost 40 meters and consists of two floors with a width of 25.30 meters and a height of 39.1 meters. According some archaeologists it was a temple. The others thought it was a library storing documents. However recently there were unearthed graveyards beneath. The Treasury dates back to the I century BC.
Sources:
- Thomas Paradise, Natural and Anthropogenic Influences on Sandstone Weathering: Lessons learned from Petra, Jordan, Etudes anciennes 52, Des déserts et des hommes : Wadi Ramm (Jordanie) : histoire économique, religieuse, sociale et environnementale : actes du colloque international à Wadi Ramm, les 11, 12 et 13 novembre 2011, Nancy : ADRA, 2013, pp. 371-395 - https://www.academia.edu/7276402
- Ioannis Liritzis at all, Nabatean tombs orientation by remote sensing: Provisional results, Mediterranean Archaeology and Archaeometry, Vol. 15, No 3, (2015), pp. 289-299 - https://www.academia.edu/1912388