I am surprised this site has no reviews because it was awesome and had the unique angle of presenting as a temporary war hospital during the Civil War. When we went, it was just the two of us on the tour with the guide very excitedly talking about the history of the house. According to the website, they only give tours Fri-Mon at 11 am and 2 pm, but as we were the only people (seemingly all day) and it was after 2, we were still grateful for the tour. If there isn't a tour, it's self-guided but someone is there to answer questions.
The house was built by the Carter family, a very prominent early Virginian family. The guide explained the family history, took us through the slave quarters to explain their history, and then how it ended up leased to the Scottish Pringle brothers at the start of the Battle of Manassas. The rooms are set up as a temporary hospital while the Pringles lived upstairs during the war. It's a unique site, focusing not only in the original 18th century origins to the Civil War and after. It's only been open for a little more than a decade a museum, but it's something history buffs should check out. There's a small gift shop, and it'll take about 1 hour to go through, but the history here is captivating. read more