Return to Article The Route of the Hajj Route of the hajj in Mecca and locations of associated rituals. World Muslim Population by Percent Map showing the percentage of the population that is Muslim in countries around the world. Projected Growth of Islam Chart showing the projected global growth of various religions between 2010 and 2050. (By the Pew Research Center, The Future of World Religions: Population Growth Projections, 2010-2050) Religious Composition of EU Immigrants Charts illustrating the composition of European Union immigrants. (By the Pew Research Centers Forum on Religion & Public Life) Hijaz Railway, 1914 Map of the Ottoman Hijaz Railway connecting Damascus to Medina. Construction on the route began in 1900 in order to facilitate the travel of pilgrims and strengthen the empire. The Location of Mecca Map showing the location of Mecca in Saudi Arabia. Hajj Route and Rituals Route of the hajj with descriptions of associated rituals by day. (From the Centers for Disease Control and Prevention) The King's Highway From the Muslim conquests of the 7th century until the 16th century, the King's Highway served as the main pilgrimage road (darb al-hajj) connecting contemporary Syria and Iraq to Mecca. Mecca, Saudi Arabia and the Hajj Route Map illustrating the location of Mecca and the route of the hajj. Muslim Populations in EU Countries, 2010 Map showing the Muslim percentage of 2010 populations in European Union countries. (By the Pew-Templeton Global Religious Futures Project) Number and Percentage of Muslims in EU Countries Chart of European Muslim populations by size and percent. (By the Pew-Templeton Global Religious Futures Project) Expansion of the Ottoman Empire Map illustrating stages of Ottoman imperial expansion until its peak in 1683. Extent of World Empires in 1900 Map illustrating the extent of world empires in 1900. World Muslim Population by Size Map showing the size of Muslim populations in countries around the world. Return to top