The Mansion on O Street

#1 for meetings and events in the world — event mb
top five historic venues to explore — in the world —

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Great Museum

— Monica Gonzalez

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This place is AMAZING! If you get the chance to go, go! It was a once in a lifetime experience. I feel like you could go countless times and see something different every time. We only found 12 doors but just being immersed in the place's incredible history was worth going.

— Amanda Halverson

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I have already contacted several friends and told them this is their next can't-miss destination in DC. We were fortunate to have gone when there was very little traffic and couldn't have had a better time. Absolutely fascinating. We found 12 doors in two hours! Can't wait to come back and find more.

— Pam Catindig from

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Awesome place - best museum in DC by some distance!

— Ross A Gray