The Great Mosque of Mecca, also known as Al-Masjid al-Haram, is the largest mosque in the world and the most sacred mosque for Muslims. It is located in the city of Mecca, Saudi Arabia, and is the focal point of the Islamic pilgrimage of Hajj, which is one of the Five Pillars of Islam.

The mosque was first built in the 7th century and has been expanded and renovated several times over the centuries. Today, it covers an area of over 88 acres and can accommodate up to 2 million worshipers during Hajj. The mosque contains several important structures, including the Kaaba, which is the holiest site in Islam and the direction of prayer (Qibla) for Muslims all over the world.

The mosque is surrounded by several minarets, which serve as call to prayer towers, and is decorated with intricate Islamic calligraphy and tile work. It also contains several fountains, courtyards, and a large open-air plaza for prayer and other religious activities.

Visiting the Great Mosque of Mecca is a once-in-a-lifetime experience for many Muslims, and it is considered a spiritual journey of great importance. Access to the mosque is restricted to Muslims only, and visitors must comply with strict dress codes and other regulations. Nevertheless, the Great Mosque of Mecca remains one of the most iconic and important religious sites in the world, attracting millions of visitors each year.