Also known as Nilgiri Mountain Railway, the toy train is one of the most popular Ooty tourist places. More than a century old, the toy train covers 46kms in 5 hours and takes you on a journey that is picturesque and unforgettable. Declared as a World Heritage Site by UNESCO, this toy train takes you through darkened tunnels, cleaving through mist and fog. This is indeed something that you should experience at least once in your lifetime. The rail system here is said to be the steepest in Asia and the trip begins from Mettupalayam and then crosses Coonoor, Wellington, Lovedale and Ooty.