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Mecca(Al-Masjid Al-haraam, kaaba) and Medina(Al-Masjid Al-Nabawi) in Saudi Arabia and Al-masjid Al-Aqsa in Jerusalem.
Yes, Muslims have three holy places:
in his home al-masjid al-nabawi in medina the kingdom of saudi arabia
Masjid Al-Haram in Makkah Al-Mukarramah
followed by
Masjid Al-Nabawi in Al-Madina Al-Munawwara
Read more: What_is_islam's_holiest_building
In Al-Mainah (Medina) in Saudi Arabia as Annex to Al-Masjid Al-Nabawi (the Prophet Mosque).