Shivta in Wikipedia
            Shivta or Sobota or Subeitah or Subaytah (Hebrew: שבטה), is 
an archaeological site in the Negev Desert of Israel, east 
of Nitzana. It is now the Israeli Artillery Corps main 
training facility.
Long considered a classic Nabataean town and terminal on the 
ancient spice route, archaeologists are now considering the 
possibility that the town was actually a Byzantine 
agricultural colony and a way station for pilgrims en route 
to the Santa Catarina, Egypt , located on the supposed site 
of Mount Sinai.
The new assessment of Shivta is based on an analysis of the 
irrigation system found at the site, which bears parallels 
to Byzantine structures elsewhere. Until now, the 
preponderance of Byzantine ruins were believed to be the 
remains of a monastic community that established itself on 
the ruins of an earlier Nabataean town.
The Shivta site contains three Byzantine churches, 2 wine-
press, residential areas and administrative buildings. After 
the Arab conquest in the 7th Century CE, Shivta began to 
decline in population. It was finally abandoned in the 8th 
or 9th Century CE.
Shivta was declared a world heritage site by UNESCO on June 
2005.
                          
 Read More about Shivta in Wikipedia