If you are here, don't miss out on two engineering wonders. Grand Anaicut or Kallanai dam was built in the 2nd century and admire this dam for the way it has stood the test of time. Mukkombu Dam or Upper Anaicut, an equally impressive structure built in the 19th century also holds interest for its scenic appeal and the green cover. Being a centre for religious tourism, plan your schedule to visit Kumara Vayalur, Samayapuram, Tiruvellarai and Gunaseelam. 

For the green lover, there is Pachamalai, a greeny, hilly range located at an altitude between 500-1000 m. Take in the fresh air and get a taste of ethnic lifestyle at villages like Thenpara nadu, Kombainadu, Aathi nadu and Vannadu. Replete with small streams, rivulets and falls, trekkers can't resist the pull to explore this place. 

Do find some time to head to Pulianchola located at the foothill of Kollimalai. Take in the fresh cool air and relax yourself a whole day with nothing to worry about. You may also visit St. Mary's cathedral at Melapudur. The nature lovers may find a lot to rejoice at the butterfly park, considered to be one of the biggest in Asia. Spread over a whopping 35 acres, this place sits on the banks of Cauvery river. A garden, a butterfly glass house, fountains, cool huts make it a place of ultimate calmness.  

A walkway measuring 1.2 kms takes the visitors on a beautiful journey through this park. There is also a Nakshatra vanam comprising trees corresponding to zodiac signs and stars. Around 27 trees each matching 27 stars of the Hindu almanac can be found here. Once the citadel of the early Chola rulers, Thiruchirappalli is known after the imposing rock fort located in the heart of the city. Admire this tall rock structure built at a height of 275 feet. A cave temple filled with inscriptions adds to the historic appeal of this rock fort. Religious sites like Sri Ranganathaswamy Temple, Erumbeeswarar Temple, Jambukeshwara Temple, Vayalur Murugan Temple, All Saints Church also draw tourists in great numbers.