birthplace of Muhammad and a site of Muhammad's first revelation of the Quran (the site in specificity being a cave 3.2 km (2 mi) from Mecca),[5][6] Mecca is regarded as the holiest city in the religion of Islam[7] and a pilgrimage to it known as the Hajj is obligatory for all able Muslims. Mecca is home to the Kaaba, by majority description Islam's holiest site, as well as being the