well, this is Al-Aqsa Mosque; & it's for Muslims not for Jews! and Al-Aqsa Mosque is the place from which Prophet Muhammad (PBUH) went on a night journey (al-isra) during which he rode on Buraq, who took him from Mecca to al-Aqsa ! & there's no temple for Jews under it
Inside the Temple Mount?
The Jewish Temple was destoyed some 2000 years ago - the only part left undestroyed is what is called "the western wall" or kotel
This must be inside one of the mosques buit at the place of the old Jewish Temple