http://en.wikipedia.org/wiki/Tangier,_VirginiaTangier is a town in Accomack County, Virginia, United States, on Tangier Island in the Chesapeake Bay. The population was 604 at the 2000 census. The tiny island community has attracted the attention of linguists because its people speak a unique English Restoration era dialect of American English. Each of the original surnames and several of the present surnames on the island originated in the United Kingdom, predominantly from Scotland.
This accent definitely sounds unique to me, I've never heard anything like it before in the US.