The Jama Masjid mosque in Delhi, India was commissioned by Mughal Emperor Shah Jahan and constructed between 1650-1656. It is the largest mosque in India and one of the largest mosques in Asia. The mosque was built using red sandstone and white marble with space for up to 25,000 worshippers. However, the mosque is now threatened by a planned underground parking structure nearby that risks damaging the historic structure's foundations.