Muslims face the direction of the Kaaba in Mecca, Saudi Arabia, when they pray. This direction is known as the Qibla. Facing the Qibla during prayer is a unifying act of devotion commanded by Allah and prescribed in the Quran (2:144), and it symbolizes the unity of Muslims worldwide regardless of geographic location.

The Kaaba is located in the Sacred Mosque (Al-Masjid Al-Haram) in Mecca and is considered the most sacred site in Islam. Muslims around the world use various means such as compasses, mobile apps, and the position of the sun to find the accurate direction of the Qibla from their location, which varies depending on where they are on the globe.

Historically, Muslims originally faced Jerusalem during prayer but later changed the direction to the Kaaba in Mecca based on a divine revelation to the Prophet Muhammad (PBUH).

Thus, when Muslims pray, they face towards the Kaaba in Mecca to perform their Salah (prayer). This facing direction is considered essential and must be adhered to for the prayer to be valid.