Srirangam is famous for its Sri Ranganathaswamy Temple, a major pilgrimage destination for Hindus (especially Srivaishnavites) and the largest temple complex in India.
According to the temple's website, Srirangam can be considered the biggest functioning Hindu temple in the world, as it covers an area of about 631,000 square metres (6,790,000 sq ft) with a perimeter of 4 km (10,710 ft). Angkor Wat is bigger but non-functioning.
The Srirangam temple complex is composed of 7 concentric walled sections and 21 towers gopuram. The gopuram of the temple is called the Rajagopuram and is 236 feet (72 m) tall, the tallest in Asia. The temple has seven prakaras (elevated enclosures) with gopurams articulating the axial path, the highest at the outermost prakara and the lowest at the innermost. In historic times, just after the construction of this temple, the city of Srirangam lived completely within the walls of this temple and hence is quoted as an example of Hindu religious utopia - during its peak of existence.
The Srirangam temple is one of the three temples of the god Ranganata that are situated in the natural islands formed in the Kaveri river.