Aerial from east 

One mile due west of traditional Ai (et-Tell) is Kh. el-Maqatir, an alternate location for Ai. Its location fits the approximate area one would expect to find the city that Joshua destroyed in the Conquest. Furthermore, the absence of any evidence of inhabitation at et-Tell should compel the honest historian to look elsewhere for Ai.

Read more at http://www.bibleplaces.com/maqatir.htm