Located on the island of Sri Rangam in Trichy, the Ranganatha Swamy temple is spread across 155 acres, making it the largest functioning Hindu temple in the world. The temple is the home to 81 shrines, 39 pavilions and 21 temple towers, with numerous water tanks inside. The sanctum is fortified by 7 concentric enclosures or prakarams, with the streets and houses present inside the outer walls! This temple is a place of celebration during the Margazhi season, hosting pooja and numerous cultural functions, with sweets being handed out to devotees any time of the day. If you're looking to have the most authentic, South Indian Marghazhi experience, you've got to head to Sri Rangam.