The museum is small, but was in good condition and well maintained. We spent about an hour going through all the exhibits, and the kids (9, 14 and 17) all really enjoyed it. The exhibits are all different kinds of visual illusions, e.g. one where it looks like you are walking up the side of a building, or a room where it looks like you height changes depending on where you stand. The exhibits are mostly made to be photographed (and there are instructions on where to stand), so better to come with at least 2 people. Explanations of the illusions are provided in Hebrew and English. Entry is quite expensive, even with the discounts available from different credit cards, better to order in advance from the website and to book a time.