“Which is the largest mosque in the world?”

"Masjid al-Haram in Makkah Saudi Arabia is the largest mosque in the world housing the Kaaba and accommodating millions of worshippers. Its spiritual and architectural significance is unparalleled in Islam. Understanding Masjid al-Haram’s role highlights its centrality in Islamic worship and global Muslim unity a key topic in Islamic studies as of August 13 2025."