My family recently visited Mount Vernon.
I saw the house years ago but the tour has been expanded substantially.
Expect to spend about 4 or so hours.
There is a visitor's center with a couple of cool/interactive movies. Lots of interesting history and displays, and great learnings for kids. And the house is beautiful.
Aside from all the relevant history we learned, we also discovered a few surprising facts. George Washington was a very successful businessman - he expanded his farms and crops and his most successful business ended up being distilling and selling Whiskey.
