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We've never had so much fun in a museum before! Found only 19 doors and just sorry that we didn't count the rooms! Took tons of pics and spread the word lots of ways including FB. Memorabilia is fantastic and we will definitely come back next time we are in DC.

It was great! It was a bit too busy to really effectively search for or find secret doors, but otherwise the whole mansion and its contents were really cool

It was a unique and exciting experience that you should do at least once when visiting DC

We were in DC for a vacation but some in my group had to attend to a couple business activities. While they were doing that, 2 of us visited the museum and had such a great experience, we brought the rest of the group back later in the week. There are tons of really great experiences in the DC area, but the O Mansion is at the top of my list!