Andaman and Nicobar is a top-dog in the tourism industry. And its eco-tourism criterion has made this union territory livable and engrossing. Besides sapphire beaches, outstretched greenery and thousands of recreational activities, Andaman and Nicobar Islands have engaging monuments, which reflects the struggle, art and lifestyle during the British invasion. The topmost monuments of Andaman and Nicobar are Chatham Saw Mill, Cellular Jail and Viper Chain Gang Jail; and you can find the information about them here.