Opening times The Amsterdam Dungeon is open every day* of the week. The doors open up at 11.00 am and the last tour starts at 17.00 pm. New for the summer! The Amsterdam Dungeon will be open for an extra hour from 3rd July to 5th September! We will be opening at 10.30 am and closing at 17.30 pm. *With the exception of Queen’s Day (30th April).