This is a Shiva temple in Tenkasi. The name of the town comes from this temple. Tenkasi in South Indian languages means South Kashi (Then+Kashi). As name goes, Tenkasi is situated in the Southern India and home to ThenKasi Viswanathar Temple.
There is a place to sit and meditate. You can go into meditative states here effortlessly.
How to get there
The temple is located 1 km south of Tenkasi junction.
Map: https://goo.gl/maps/okzKnUd7qAMqnSVb9
About Kasi Viswanathar Temple, Tenkasi
As per Hindu legend, a Pandya king Parakrama Pandyan wanted to construct a temple for Hindu god Shiva at Tenkasi and went to Kasi to bring a lingam, an iconic representation of Shiva in South India. Shiva appeared in his dream and asked him to follow the army of ants. The next day he found that there was an army of ants. The king realised that it was because of the divine intervention that he was prevented from going to Varanasi. He built the temple in the place where the anthill ended.[1][2]
Read More:
https://en.wikipedia.org/wiki/Kasi_Viswanathar_Temple,_Tenkasi