In 17th-century, red sandstone Mughal-style mosque with a 25,000 capacity & 40m high minarets.The Jama Masjid was regarded as a symbolic node of Islamic power across India, well into the colonial era. It was also a site of political significance during several key periods of British rule. It remains in active use, and is one of Delhi's most iconic sites, closely identified with the ethos of Old Delhi.