UNESCO World Heritage Sites in Tamil Nadu: Complete List

Tamil Nadu is known as the 'Land of Temples'. This state serves as a living museum of India’s glorious past. It is home to intricately carved rock cut temples and a nostalgic toy train winding through natural mountains. 

Complete List of UNESCO World Heritage Sites in Tamil Nadu

According to the Archaeological Survey of India (ASI) and United Nations Educational, Scientific and Cultural Organization (UNESCO). The state has 4 designated UNESCO World Heritage properties. 

Group of Monuments at Mahabalipuram (Mamallapuram)

Group of Monuments at Mahabalipuram (1984) is the first site inscribed. It was founded by Pallava king Narasimhavarman I known as Mamalla. This coastal town is a prime example of early stone architecture. The site is famous for its transition from rock-cut cave sanctuaries to structural and freestanding stone temples.

• Year of Inscription as a UNESCO World Heritage Site: 1984

• Category: Cultural

• Dynasty and time period: Pallava Dynasty during the 7th and 8th CE

• Location: Chengalpattu District, Tamil Nadu

• The temple’s main Shore Temple, Pancha Rathas, Arjuna's Penance and Varaha Cave.  

• The shore temple one of the oldest structural stone temples in South India built by  Pallava Dynasty king Narasimhavarman II (Rajasimha). 

• The temple standing strong against the waves of the Bay of Bengal remains a breathtaking highlight of early Dravidian stone architecture. 

• Mahabalipuram is an open-air museum. The site is famous for its rathas, mandapas (cave sanctuaries) and giant open-air rock reliefs like Arjuna’s Penance (the world's largest bas-relief).

• Its rock-cut architecture is built in the Dravidian style. Pancha Rathas (Five Chariots) are monolithic rock-cut structures named after the Pandavas and Draupadi.

• Arjuna’s Penance is considered a descent of the Ganges. It is one of the largest open-air rock reliefs in the world, depicting the story of the River Ganges descending to Earth.

The Great Living Chola Temples

These temples are example of the pinnacle of Dravidian architecture achieved during the Chola Empire. They are called "Living Temples" because the traditional rituals, worship practices and cultural festivals initiated over a thousand years ago continue to be actively performed today.

This World Heritage Property comprises three monumental temples

• Year of Inscription: 1987 (Expanded in 2004)

• Category: Cultural

• Dynasty and Period: Chola Dynasty (11th and 12th centuries CE)

• Location: Thanjavur, Gangaikonda Cholapuram and Darasuram

Brihadisvara Temple (Thanjavur) was built by Rajaraja Chola I and completed in 1010 CE. It features a massive 66-meter-high Vimana (temple tower) topped with an 80-tonne single stone monolithic Kumbam.

Brihadisvara Temple also known as the Gangaikonda Cholapuram. It was built by Rajendra Chola I to celebrate his military expedition to the Ganges. It is known for its elegant, concave-curved Vimana.

Airavatesvara Temple (Darasuram) was built by Rajaraja Chola II. It is celebrated for its highly detailed miniature stone carvings and a mandapa shaped like a chariot pulled by horses and elephants.

Mountain Railways of India-Nilgiri Mountain Railway

The Nilgiri Mountain Railway (NMR) is a 46-kilometer-long meter-gauge toy train that scales the rugged Nilgiri Hills. It covers Mettupalayam to Ooty (Udhagamandalam). 

• Year of Inscription: 2005 (Inscribed as an extension to the Darjeeling Himalayan Railway)

• Category: Cultural

• Period: British Colonial Era in 1908

• Location: Nilgiris and Coimbatore districts

The railway track was built by the British using an ingenious Abt rack and pinion system to tackle steep gradients. The train passes through dozens of tunnels, sweeping curves, wooden bridges  and lush green tea estates making it a masterpiece of early 20th-century engineering.

It operates primarily using traditional steam locomotives preserving its historic authenticity.

The Western Ghats 

The Western Ghats mountain chain is recognised globally as one of the world's eight "hottest hotspots" of biological diversity. It is older than the Himalayas and influences the Indian monsoon weather pattern.

• Year of Inscription: 2012

• Category: Natural

• Location: Spread 6 states (Tamil Nadu, Kerala, Karnataka, Goa, Maharashtra and Gujarat)

The UNESCO inscription includes specific protected areas within Tamil Nadu. It includes the Kalakkad Mundanthurai Tiger Reserve (KMTR), Srivilliputtur Wildlife Sanctuary and Mukurthi National Park.

The hills are home to endemic species. This region shelters critically endangered fauna, including the Nilgiri Tahr (the state animal of Tamil Nadu) and the Lion-tailed Macaque.