
A beautiful pocket of calm at the heart of Old Delhi's mayhem, the capital's largest mosque is built on a 10m elevation. It can hold a mind-blowing 25,000 people. The marble and red-sandstone structure, known also as the ‘Friday Mosque’, was Shah Jahan’s final architectural triumph, built between 1644 and 1658. The four watchtowers were used for security. There are two minarets standing 40m high, one of which can be climbed for amazing views.