Here's some more things you could explore in the area...

At this site, you'll find information on 3 amazing nautical museums - The Mariner's Museum, and the Virginia Living Museum in Newport News,and the Virginia Air & Space Museum in Hampton.
Three Nautical Museums

Then there is Colonial Williamsburg

And Jamestown Settlement & Yorktown Victory Center

There's the Waterman's Museum, historic tours and Riverwalk Landing in Yorktown. At the Riverwalk, besides exploring the neat shops , you can also sail away on the 105' Tall Ship, The Alliance .
Historic Yorktown