Carlby House, Carlby Lane, Alexandria, Virginia
George Washington fished here. It's unknown whether or not he actually slept on the land now occupied by Carlby House, but his Mount Vernon fishery was located in this very spot. That's the only historical fact that's certain about Carlby, despite the oft-repeated legends from its real estate listing. More on that in a bit...first, let's get a look at this show-stopping house. It was built around 1762, but not in this location. It was moved 149 miles from Sussex County, Virginia to land on the shores of the Potomac in Alexandria in 1946.