Twelve Shiva

 Twelve Shiva temples are connected with Mahamaham festival which happens once in 12 years in Kumbakonam. They are 

1. Kasi Viswanathar Temple, 
2. Kumbeswarar Temple, 
3. Someswarar Temple, 
4. Nageswara Temple, 
5. Ekambareswarar Temple, 
6. Gowthameswarar Temple, 
7. Abimukeswarar Temple, 
8. Kambatta Visvanathar Temple, 
9. Banapuriswarar Temple, 
10. Kalahasteeswarar Temple, 
11. Koteeswarar Temple, and 
12. Amirthakalasanathar Temple.