The Haganah museum holds historical exhibitions and photographs about the pre-state underground group. For me it is an important museum since my grandfather was involved in this group which later integrated with the Palmach and the IDF. It is not as new as the Palmach museum, but it tells the story of the Haganah in an informative matter. If you are interested in the history of the IDF and Israel before 1948, it is a nice museum to visit. The building itself is in the eclectic architecture style which is really nice to look at.