Madurai is famous for Meenakshi temple, temple is dedicated to Hindu Godess Parvati know as Meenakshi, temple is located in main Madurai city, one can reach here by train as well as by air, I’ve been there twice, once by train and recently by road from Munnar, Kerala.
Meenakshi temple is worth seeing, beautiful colorful corridors, pillars, sculptures, the holy tank in the middle of the temple with a golden pillar and a golden lotus flower, the temple have four entrances called as north tower, east tower, west tower & south tower.
Madurai is a temple city there are lots & lots of temples, one of the famous temple other than Meenakshi amman temple is Thirupparamkunram Murugan Temple.
apart from the temple tour, Madurai is famous of its silk sarees, thats why I really love Madurai, as I am crazy for silk sarees
you can also see Gandhi Muesuem & Thirumalai nayak palace( every day there is a one hour sound and light show in the evening).