1 Masjid al-HaramMasjid Al-Haram or Great Mosque of Mecca occupies the top spot in the list of the world’s biggest mosques. Masjid al-Haram is the holiest shrine for entire Muslim world since its center is the heart of Islam, The Kaaba, known as the House of God. It covers 400,800 square metres(99 acres), and has outdoor and indoor praying spaces. Masjid al-Haram will house over 2.5 million worshipers during the Hajj period.
2 Al-Masjid al-NabawiAl-Masjid al-Nabawi, often called the Prophet’s Mosque is one of the most beautiful, attractive and biggest mosques in the world. Situated in the city of Medina in Saudi Arabia, the mosque is covered with so many subtle signs and secrets. Built originally by Prophet Muhammad (PBUH) in 622 AD, the mosque has since then been through many transformations and expansions. The most prominent feature of the mosque is the green dome, which rises high amongst the white domes.