AMU Campus is an excellent example where the Sunnis and Shias live in perfect harmony.I know of 2 holy mosques the Mecca and Medina mosques where the Sunnis and Shias pray together at the same time in the same rows.The AMU Jama masjid is an example where the Sunnis pray and then Shias go in to pray Juma ,popularly knows as 1st show and 2nd show.