Muthumariamman Temple, Thayamangalam

A mid-18th-century goddess temple in Nattarasankottai, about 9 km from Sivaganga, dedicated to Kannudaya Nayaki Amman, locally called Kannathal. The deity is believed to cure eye ailments and grant good eyesight to devotees. Nattarasankottai is traditionally held to be the first settlement of the Nagarathar (Chettiar) community after they moved south from the Chola country.

A fortified living Shiva temple linked to Sivaganga and the Maruthu brothers.

A Gothic-style Catholic church at Idaikattur, built in 1894 by the French Jesuit missionary Fr. Ferdinand Celle and modelled on the Rheims Cathedral of France. Its interior features gothic arches, terracotta ornamentation, over 200 decorative moulded tiles and a 45-foot altar facade, with statues imported from France. It is now venerated as the Sacred Heart Shrine and is a landmark of Christian heritage architecture in the district.

A Vishnu temple at Ariyakudi popularly called 'Then Tirupati' (Tirupati of the South), an important pilgrimage stop in the Chettinad region.

The principal Shiva temple in the heart of Devakottai, known locally as the Nagara Sivan Koil, built in the late 19th century by the Nagarathar community. The presiding deities Sundareswarar and Meenakshi are enshrined in their wedding (kalyana kolam) posture. It is also called the Sekkizhar Temple, with a shrine and processional image of Sekkizhar, the 12th-century author of the Periya Puranam.

One of the nine Nagarathar clan temples of Chettinad, located at Iluppaikudi and dedicated to Shiva as Thanthondreeswarar (also called Swayamprakasha Eswarar). Like the other clan temples, it functions as an ancestral temple of one exogamous section of the Nattukottai Chettiar community. It is maintained by the Nagarathar and is part of the traditional pilgrimage of the nine clan temples.

A Shiva temple at Pattamangalam noted as a Gurusthalam associated with Dakshinamurthy, the aspect of Shiva as the supreme teacher. It is listed among Sivaganga district's spiritual places of pilgrimage. Devotees visit it for blessings related to learning and wisdom.

This ancient Vishnu temple near Tirupathur is one of the 108 Divya Desams glorified in the Naalayira Divya Prabandham of the Alvars. It is famed as the place where the Vaishnava acharya Ramanuja proclaimed the sacred Ashtakshara mantra 'Om Namo Narayanaya' to all people from the temple tower, defying his teacher's instruction to keep it secret. Its landmark Ashtanga Vimana rises even taller than the five-tiered rajagopuram and enshrines the deity in three postures across its levels.

An old Kali temple in Madapuram village on the banks of the Vaigai near Thiruppuvanam, revered as one of the guardian deities (kaval deivam) of the Madurai Pandya kings. The fierce goddess Bhadrakali stands about 12 feet tall in an open sanctum without a roof, sheltered beneath a roughly 30-foot horse figure. Popularly known as the shrine of the 'Goddess of Justice', it draws devotees seeking fair resolution of disputes.

The Sri Vairavar Swamy Temple at Vairavanpatti, a Chettinad-region shrine dedicated to Bhairava (Vairavar), a fierce form of Shiva.

A Shiva temple at Kottaiyur village in the Chettinad belt, known locally for its gopuram and traditional Dravidian temple architecture.

A centuries-old Shiva temple (also called Siragilinather) in Kandadevi village, about 3 km from Devakottai. It is best known for its grand Aani Urchavam chariot (ther) festival in the Tamil month of Aani, drawn by devotees from around 75 surrounding villages. The chariot procession was suspended for 17 years amid community disputes before being revived in 2024 as a symbol of restored social harmony.