Good museum, skip the gift shop
While the museum was amazing, the gift shop is to be skipped. The cashier mislead my husband to believe that what he was buying the 200 czk item he asked for, and then charged him for a similar item that was 1350 czk. When he met me outside of the shop and told me he thought the total was high, we realized the mistake we went right back in to correct it. The evil cashier would not exchange the item, mumbling some crap in Czech as to why, so we were stuck with an expensive item we did not want. As a whole we have encountered a lot of crooks in Prague ripping off tourists, but this was the most outrageous. My advice is when buying expensive items always use a credit card so that the charges can be disputed and also expect all sales to be final.