First of all, the Temple Mount is not a large place, about 140,000 square meters, it is a holy place for Islam and Judaism. Muslims believe that from here Muhammad ascended to the sky, and here the resurrection of the dead will happen on judgment day. Jews remember the Temple, which was built here and was destroyed twice.
On the Temple Mount, among others, the Al-Aqsa Mosque and built and the impressive Dome of the Rock, a luxury Islamic architecture.
The Temple Mount is located on the South-Eastern side of the Old City of Jerusalem. Today the area is mainly flattened, and is almost perfectly rectangular. It is a real mountain, where the peak reaches 743 meters above sea level. It was originally built during Herod's Rule, but was retained by Muslims, who conquered the city and turned it into a mosque. The wall on the western side is the "Western Wall" - The holiest place for Jews, the last remains of the Temple.
Either way, Jews are not allowed to pray on the Temple Mount, and are only allowed to visit. Only Muslims are permitted to pray here.