Blackbeard was a real pirate, and his ship Queen Anne's Revenge was found off the coast of North Carolina in 1996. Archaeologists have recovered more than a dozen cannons from the wreckage, along with gun flints, shackles, and other pirate-y artifacts.
Treasure Wreck - The Fortunes and Fate of the Pirate Ship Whydah by Arthur T. Vanderbilt, II. This book tells the story of Barry Clifford's search for, and salvage, of 'Black' Sam Bellamy's pirate ship, 'Whydah'. The 'Whydah' sank off Cape Cod in 1717.