It's amazing what we do to each other as humankind. Make sure you take the tour which is given in many languages. It is included in the price of the tour. They will walk you through the whole process of being sent to this detention camp, from administration to execution. A very humbling and somber experience, but makes you think about how difficult it must have been to be a prisoner here.
Wear comfortable shoes because there is a walk through tunnels.
Restaurant there really only serve fast food, so eat before you go if you want a proper meal.
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