== Mecca.
There is no holy river for Muslims or for Islam religion.
This pilgrimage is called the Hajj.
The holy site of Islam is located in Mecca, Saudi Arabia. Specifically, the Kaaba is located there (it's a giant black cube). The Kaaba is the most sacred and holy site in Islam. When Muslims pray, wherever they are on the globe, they pray in a certain direction so that way they are facing the Kaaba. They once faced Al-Aqsa (another holy site in Islam) Jerusalem as the direction of prayer.
Most, if not all, bedouins are Muslims. The most holy place for them is Mecca, with the holy city of Meddinah second.
Israel/Palestine.
Israel/Palestine
No, non-Muslims are not allowed to enter the city of Mecca for any reason as it is considered a holy site reserved for Muslims only.
The Muslims have the Dome of the Rock Shrine and the Al-Aqsa Mosque which form a single holy site together.
Is The Dome of the Rock a religious holy site for Christians,Muslims ,or Jews
Arabs is not a religion. Muslims venerate Mecca as a Holy City. All Arabs are not Muslim. All Muslims are not Arabs.
Jerusalem is a Holy city in Judaism, Christianity & Islam.
The most Holy city for Muslim is Mecca where our Holy Prophet was born.