Most of the holy cities of Islam are situated in Saudi Arabia. Anyhow, many other countries like Iraq, Pakistan and India also have holy cities for the Muslims.
Islam, Judaism, and Christianity all have most of their holy sites located in the Middle East.
Mecca and Medina
Palestine
Most religions have holy sites, including the Christians, Jews, Muslims and Catholics.
Three religions with holy sites in the eastern Mediterranean are Christianity (including sites like Jerusalem and Bethlehem), Judaism (with sites such as the Western Wall in Jerusalem), and Islam (with sites like the Dome of the Rock and Al-Aqsa Mosque in Jerusalem).
The Middle East, in particular the city of Jerusalem in Israel has holy sites for all 3 of those religions.
The holy Qur'an
The Middle East, in particular the city of Jerusalem in Israel has holy sites for all 3 of those religions.
The main site shared Holy by these three religions is Jeruselum.
Judaism, Christianity, and Islam. Those are the major, monotheistic religions in the region. The minority religions of Druze and Baha'i also have holy sites in Israel.
The holy sites of all three religions can be found in the Middle East, where all originated. More specifically, all have sites located within the current nation of Israel.
The Kaabah, Makkah is the direction of prayer for Muslims from anywhere throughout the world . They once faced Al-Aqsa (another holy site in Islam) Jerusalem as the direction of prayer.