Airavateswara Temple, in Darasuram, near Kumbakonam, has also been designated part of the same UNESCO World Heritage site and forms another major tourist attraction of the district.
The green paddy fields of the Kaveri river valley provide a picturesque setting for these and other important ancient monuments of the district.
The fort was built by Maratha ruler Serfoji II in 1814–1815 to commemorate the successful advance of the British over Napoléon Bonaparte.
Overlooking the Bay of Bengal, the fort is hexagonal structure and has eight storeys, raising to a height of 75 ft (23 m), tapering to its top.
[citation needed] The flora of Thanjavur was studied and documented in some detail by S. A. Ganapathy for a doctoral thesis in 1992.