Don't let appearances fool you, this building looks like a warehouse, but it's really a museum. I spent at least 3 hours there, and I could have spent many more, the place is full of unique and interesting bits of mlitaria.
Though it's called the Tank Museum, it features much more. It also features uniforms, including the largest selection of headgear and helmets I've ever seen, from both European and US military forces dating back over 150 years.
As for the armor and vehicles, the museum has many pieces I have rarely or never seen on display anywhere, ranging from WWI through the modern era, and while some are in a state of repair or renovation, most of them are museum quality. You can even "adopt" a vehicle and your donation goes to its repair or upkeep. The vehicle displays are complemented by a lot of smaller posters, historic documents, narratives and photos, so you often get a good idea of the significance of the vehicles and the people who crewed them.
At certain times of year, the museum has car shows, as well as RC tank "combats" in their indoor dirt arena set up just for the event. Though the museum is completely indoors, there is a large outdoor area that is sometimes used for live demonstrations.
Call ahead for the hours, it's generally only open Wednesday-Saturday during tourist season, winter hours are fewer,
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.