Jerusalem and Mecca are two of the most important religious destinations for many pilgrims. Jerusalem is a city in Israel that is considered holy by Jews, Christians, and Muslims. It is the site of many important religious sites, including the Western Wall and the Church of the Holy Sepulchre. Mecca is a city in Saudi Arabia that is considered holy by Muslims. It is the birthplace of the Prophet Muhammad and the site of the annual Hajj pilgrimage.