Mecca,Arabic Makkah, ancient Bakkah, city, western Saudi Arabia, located in the Ṣirāt Mountains, inland from the Red Sea coast. It is the holiest of Muslim cities. Muhammad, the founder of Islam, was born in Mecca, and it is toward this religious centre that Muslims turn five times daily in prayer. All devout and able Muslims attempt a hajj (pilgrimage) to Mecca at least once in their lifetime. Because it is sacred, only Muslims are allowed to enter the city.
In the 20th and 21st centuries the city underwent vast improvements. The area around the religious shrines was cleared, the mosque enlarged, housing and sanitation improved, and transportation facilities enhanced. As a result, Mecca can accommodate the continually increasing number of pilgrims, or hajjis. Area 10 square miles (26 square km). Pop. (2010) 1,534,731.
