Mecca both residents and pilgrims. Mecca's culture has been affected by the large number of pilgrims that arrive annually, and thus boasts a rich cultural heritage. As a result of the vast numbers of pilgrims coming to the city each year, Mecca has become by far the most diverse city in the Muslim world. In contrast to the rest of Saudi Arabia, and particularly Najd, Mecca has, according to "The New York Times", become "a striking oasis" of free thought and discussion and, also, of "unlikely liberalism" as "Meccans see themselves as a bulwark against the creeping extremism that has overtaken
Mecca failures of crowd control because of the large numbers of people who come to make the Hajj. For example, on 2 July 1990, a pilgrimage to Mecca ended in tragedy when the ventilation system failed in a crowded pedestrian tunnel and 1,426 people were either suffocated or trampled to death in a stampede. On 24 September 2015, 700 pilgrims were killed in a stampede at Mina during the stoning-the-Devil ritual at Jamarat. Mecca is at an elevation of above sea level, and approximately inland from the Red Sea. Central Mecca lies in a corridor between mountains, which is often called