It is only a part of the wall of the temple courtyard. It seems likely that synagogues were instituted during the 70 - year Babylonian exile when there was no temple in existence or shortly after the return from exile while the temple was being reconstructed.
द वेलिंग वॉल, जेथे अनेक यहुदी दूरदूरहून प्रार्थना करायला येतात तो मंदिराचा भाग नाही.