Washington, D.C. has some of the most famous museums in the world, and while they are not all made equal, we definitely were surprised to hear that the District is home to both the most and the least disappointing museums in the world!
The study, which was conducted by Radical Storage, reviewed a total of 82,445 visitor reviews of 100 of the most visited museums to determine which were most (and least) disappointing for visitors.
The least disappointing museum in the world – right here in D.C.
The study found that the least disappointing museum in the world is none other than the National Portrait Gallery right here in Washington, D.C.!
The National Portrait Gallery received a satisfaction score of 76.9 out of a potential max score of 100, the highest in the study.
Rounding out the top-five least disappointing museums in the world were:
- National Portrait Gallery, Washington, D.C.: 76.9
- Kelvingrove Art Gallery and Museum, Glasgow: 75.9
- National Museum of Korea, Seoul: 74.1
- Thyssen-Bornemisza Museum, Madrid: 73.8
- Palacio de Cristal del Retiro, Madrid: 71.9
The most disappointing museum in the world

According to the study, the most disappointing museum in the world is none other than Washington, D.C.’s very own National Air and Space Museum!
Needless to say, were taken aback by this finding, sure it may not be everyone’s cup of tea, but considering it the most disappointing museum in the world seemed wild, particularly when you see that it has 4.6 stars out of 5 on Google with over 45 thousand reviews!
That being said, the top-five most disappointing museums in the world were:
- National Air and Space Museum, Washington, D.C.: 7.5
- Science Museum, London: 8.2
- American Museum of Natural History, New York City: 8.7
- Natural History Museum, London: 11.5
- Grand Palais, Paris: 11.7
How did the National Air and Space Museum rank so poorly?
The study measured that reviews for the National Air and Space Museum featured an abnormally high density of reviews featuring negative keywords like “crowded” or “disappointing”.
So, while it may seem like the study had it out for the National Air and Space Museum, the reality is that it may have just been a flaw in the study’s methodology.

What was the methodology used for the study?
The study began by looking at over 82-thousand reviews to the top-100 most visited museums around the world in 2024.
The study searched for over 100 unique keywords frequently used in reviews, accounting for false positives such as “not disappointing”, to identify the best and the worst rated museums. The keywords were translated to incorporate reviews in French, German, Spanish, Korean, and Japanese into the study.
The study then assigned a “satisfaction score” to each museum by dividing the percentage of positive reviews by the percentage of negative reviews.
This “satisfaction score” was then proportionally converted into a number between 1 (worst possible score) and 100 (best possible score).