Tiruchirappalli is one of the oldest inhabited cities in Tamil Nadu. Situated on the banks of Kaveri River, Tiruchirappalli, was the citadel of the Early Cholas. It is mentioned by Ptolemy in the 2nd century BC. The earliest settlements date back to the 2nd millennium BC.
Srirangam can be considered the biggest functioning Hindu temple in the world as it covers an area of about 156 Acres with a perimeter of 4 km. Srirangam claims to be the biggest functioning temple, because Angkor Wat is the biggest but non-functioning Hindu temple in the world.
Ucchi Pillayar koil, is a combination of two famous 7th century Hindu temples, one dedicated to Lord Ganesh and the other dedicated to Lord Shiva, located a top of a huge rock in Trichy, India. Geologically the 83m high rock is said to be one of the oldest in the world, dating over 3 billion years ago, and mythologically this rock is the place where Lord Ganesh ran from King Vibishana, after establishing the Ranganathaswamy deity in Srirangam. 
Places to visit in Trichy:
Sri Ranga Ranganathar Temple
Naachiyaar Temple
Panchavarneswara temple
Sri Azhagiya Manavala Perumal Temple
Vekkaliamman temple
Ucchi Pillayar Temple
Thayumanaswamy temple-Part of the Uchi Pillayar
Jambukeswarar Temple, Thiruvanaikaval
Samayapuram Mariamman Temple
Uttamar Kovil
Kallukuzhi Anjaneyar Temple
Vazhivudu Murugan Temple
