Sri Ranganathaswamy Temple, dedicated to Vishnu, in Srirangam, near Tiruchirappali (28)
From the wikipedia article: (please see its edit history for attributions),

The Sri Ranganathaswamy Temple or Thiruvarangam is a Hindu temple dedicated to Ranganatha, a reclining form of the Hindu deity Vishnu, located in Srirangam, Tiruchirapalli, Tamil Nadu, India. Constructed in the Tamil style of architecture, this temple is glorified in the Thiviya Pirabandham, the early medieval Tamil literature canon of the Alvar saints of Bhakti movement from the 6th to 9th centuries AD. The temple tops the list among the 108 Divya Desams dedicated to Vishnu.

It is one of the most illustrious Vaishnava temples in South India rich in legend and history. The temple has played an important role in Vaishnavism history starting with the 11th-century career of Ramanuja and his predecessors Nathamuni and Yamunacharya in Srirangam. Its location, on an island between the Kollidam and Cauvery rivers, has rendered it vulnerable to flooding as well as the rampaging of invading armies – Muslim and European – which repeatedly commandeered the site for military encampment. The temple was looted and destroyed by the Delhi Sultanate armies in a broad plunder raid on various cities of the Tamil Pandyan kingdom in early 14th century. The temple was rebuilt in late 14th century. It was one of the hubs of early Bhakti movement with a devotional singing and dance tradition, but this tradition stopped during the 14th century and was revived in a limited way much later.