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The Mansion On O Street

4.5 (1,686 reviews) Rates on request per night Hand-verified for 2026
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Why we picked it

"A 4.3-rated genuinely unique themed-suite museum-and-hotel on O Street with CANDID "flea market" 1-star flag balanced against "best place ever" 5-stars."

At a glance
01
Unique themed-suite museum-and-hotel concept — nothing else like it in DC
02
5-star superlatives: "best place/museum I ever been to... mesmerizing, magical, captivating, jaw dropping"
03
4.7 location — Dupont/Kalorama boutique corridor
04
Game room + billiards + banquet room + kids activities
05
Paid private on-site parking (rare for DC)

About The Hotel

A 4.3-rated (208 reviews) 4-star The Mansion On O Street at 2020 O St NW in Dupont Circle/Kalorama — a genuinely unique themed-suite museum-and-hotel with rotating themed suites, hidden doors and a museum-scale collection. Subratings 4.1-4.7 with location 4.7, service 4.4, rooms 4.4, sleep quality 4.2, cleanliness 4.2 and value 4.1 (softest). Amenities include paid private on-site parking, free WiFi, bar/lounge, game room, billiards, kids activities, conference facilities and banquet room. Legacy Hot Tub Hotels frontmatter markets in-room jacuzzi suites; TripAdvisor amenity listings do not confirm in-room whirlpools — verify at booking. Recent reviews SPLIT hard between polarized takes. 5-star: “Mansion on O Street is the best place/museum I ever been to. Not enough words to describe the experience, but it was mesmerizing, magical, captivating, jaw dropping. When we went inside, it felt like entering another[world].” 4-star: “You will not always find it on things to do in DC lists. It is worth the trip. Cost is low and you can easily spend several hours in the mansion.” CANDID 1-star: “I really do not understand this hotel or museum. Its mission is unclear, but it most resembles a flea market. It is indescribably junky and cluttered. Sure, it has some cool history, but that is overshadowed by all the ju[nk].” Best only for guests specifically drawn to the themed-suite museum-hotel concept — this is a niche property that polarizes hard.

What Guests Are Saying

“I contacted the Mansion on O Street for more information about the place after my son and his girlfriend told me they were taking me there as a birthday gift. Nancy promptly called me back and provided me with a lot of information about the mansion’s history which made me even more excited to visit. I loved the experience - we didn’t feel rushed and the staff was friendly and professional. What a beautiful place filled with beautiful items for sale - a lot of the items I saw brought back fond memories of my past such as the Wizard of Oz display ,the Beatles, Star Wars, and Barbie, just to name a few. We did find 8 or 9 secret doors and had so much fun. There is so much to see and I will definitely be back in the near future - thank you Nancy and staff for making our experience a memorable one and thank you for all you do for the community, I wish there were more places like the O Street Museum - a classy place with a wonderful history and a great staff that runs it. I have already spread the word to friends and neighbors to visit - a great birthday gift!” — Paradise38894130587, 5 stars

“A completely different experience than any other museum in D.C. The beginning of the self guided experience is worth listening to every word. Its walls (that open) must have amazing stories to tell. Try and find as many hidden entrances that move you from room to hallway to room. It’s surreal as there are actual guests staying in the mansion. The amount of incredible memorabilia in this Mansion is overwhelming and every piece is for sale. As it’s an Inn as well as a museum there is a bar to stop in when you find your way back. Depending on your time limits, this could be an hour visit or three. A little off the beaten path, still hanging on to a “hidden gem” - loved it” — Fenway6, 5 stars

“Mansion on O Street is the best place/museum I’ve ever been to. Not enough words to describe the experience, but it was mesmerizing, magical, captivating, jaw dropping. When we went inside, it felt like entering another universe. Every corner revealed a new surprise & it’s impossible to see everything in one visit. We plan on doing a Night at the Museum as we are determined to find all 90+ secret doors. Run to this museum…a one of a kind museum.” — Beth M., 5 stars

Pros & Cons

Pros:

  • Unique themed-suite museum-and-hotel concept — nothing else like it in DC
  • 5-star superlatives: “best place/museum I ever been to… mesmerizing, magical, captivating, jaw dropping”
  • 4.7 location — Dupont/Kalorama boutique corridor
  • Game room + billiards + banquet room + kids activities
  • Paid private on-site parking (rare for DC)

Cons:

  • CANDID: 1-star “indescribably junky and cluttered… most resembles a flea market”
  • Reviews polarize hard — book only if concept excites you
  • Value 4.1 + cleanliness 4.2 softest subratings
  • Legacy Jacuzzi in Room frontmatter not confirmed by TripAdvisor amenities — verify at booking
  • Small 208-review sample — sample-size caveat

The Location

At 2020 O St NW in the Dupont Circle/Kalorama corridor — 3 blocks from Dupont Circle Metro. You can find more details or book your stay on TripAdvisor.

What's at the hotel
local_bar Bar
hotel Spanish
room_service Room Service
king_bed Suites
wifi WiFi
wifi Internet
hotel Paid Private Parking On Site
meeting_room Meeting Rooms
hotel Banquet Room
smoke_free Non-Smoking
child_care Kids
local_laundry_service Laundry
Location & neighborhood

Washington,
Washington.

2020 O St NW, Washington DC, DC 20036-5912
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Guest reviews

What guests are saying about The Mansion On O Street.

4.5 out of 5· 1,686 reviews
★★★★★
5/5
a week ago
"This was the coolest museum I’ve ever been to in my life and one of the closest places I think I’ll ever visit -ever. It was the most amazing thing to be able to find all these secret passages and doors and explore. I cannot say enough good about this place!! Even just all the artifacts and memorabilia was so fun to look through. I even got to meet the owner and she was delightful. I cannot recommend this place enough!"

— Amber Christensen

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★★★★★
5/5
2 months ago
"Great experience! Went with a friend for a day trip. A bit tricky to find the entrance as it is a series of 5 conjoined townhomes, so follow the signage closely to enter (go up the stairs and ring the doorbell). The attendants were very helpful as they led us to a room where we had a brief 5 minute introductory video as well as instructions and house rules. It was a great time exploring and finding doors and hidden entrances. The crowd sometimes helps reveal which doors they came out of that you may have missed! Some of the rooms were fully functional for guests who would like to rent out of the hotel. The vacant ones were open to explore with the various antiques and historical items. Nearly all of the items you see on display are available to purchase. Also each room had a theme which was very cool and interesting displaying cool historical facts about certain exhibits within. My friend and I did take about a good 2 hours to make sure we were as thorough as possible. This is the perfect opportunity for nosey people who love to investigate! Had a awesome time! Great for a day trip and we'll worth the admission."

— Courtney Peoples

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★★★★★
5/5
3 months ago
"The O Museum is seriously one of the coolest places ever. It’s full of secret doors and hidden rooms as you guys know, I found about a third of them, which was awesome. Every room has something different, and the stuff they have for sale, like the paintings and guitars, is super cool too. The whole place feels like a giant mystery house, which it literally is. And it’s such an awesome place to explore. Definitely worth checking out if you’re ever in D.C!"

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