"Veritable Garden of Eden", as the tourism department of the union territory terms it. Port Blair is capital and largest city of the Andaman and Nicobar island group. Aside from Cellular Jail, there are quite few places which include Ross Island, Barren Island (known for the only active volcano) and few others known for its historical importance.
http://wikitravel.org/en/Port_Blair
For other pictures, you may visit:
https://plus.google.com/photos/103690259164103106446/albums/5978902883636369393