Which city is considered the holy city of Islam?

Mecca is widely recognized as the holy city of Islam due to its pivotal role in the faith's history and practices. It is the birthplace of the Prophet Muhammad and the site of the Kaaba, the most sacred structure in Islam, located at the center of the Masjid al-Haram (the Great Mosque). Every year, millions of Muslims from around the world perform Hajj, a pilgrimage to Mecca, which is one of the Five Pillars of Islam and a fundamental aspect of Muslim worship and community. Mecca's central significance is further emphasized as the direction (Qibla) that Muslims face during daily prayers. This deep-rooted spiritual importance sets Mecca apart as the most revered location in the Islamic world.