The Andaman and Nicobar Islands, one of the seven union territories of India comprising 572 islands of which 37 are inhabited, are a group of islands at the juncture of the Bay of Bengal and Andaman Sea. The territory is about 150 km north of Aceh in Indonesia and separated from Thailand and Myanmar by the Andaman Sea. The territory's capital is the city of Port Blair. The total land area of these islands is approximately 8,249 km2. Each island of Andaman is different from other and has a unique story associated with it. If one has historically significant landmarks like Cellular Jail, Ross Island, Viper Island, Hopetown and Mount Harriet, while the others are the home ground to the extraordinary bird species, the traces of which can be seen only in the books. Further adding to the intrigue are 96 Wildlife Sanctuaries, nine National Parks and one Biosphere Reserve that makes this place even more appealing. Islands of Andaman are one-of -it-kind too. Barren Island of Andaman has the only active volcano in India. The Andaman Islands are home to the Sentinelese people, an uncontacted people. The Sentinelese are the only people currently known to not have reached further than a Paleolithic level of technology. The earliest archaeological evidence documents some 2,200 years. The Nicobar Islands appear to have been populated by people of various backgrounds.