Satellite image of Masjid Nabawi or the Prophet's Mosque, Madinah
The grave of Prophet Muhammad s.a.w. is below the green dome
(source: SanDiego Azadaar)
Behind this gate is the grave of Prophet Muhammad s.a.w. The graves of Caliph Abu Bakar r.a. and Caliph Umar r.a. are also located within the gate
If you visit the grave of Rasulullah, ensure that you turned around facing Qiblat (Kaabah) if you want to doa (pray). Muslims pray or doa DIRECTLY to Allah, and DO NOT use any intermediary, not even via our beloved Rasulullah s.a.w.