If you want to read every cartoon and explore everything I would set aside 3 hours or so. You can take in a good amount without reading every comic in an hour and a half. Keep in mind, when I went, there was an entire building outside that was under construction and off limits. So you might need more time to explore that if it is open. But then again, that space might just be a conference hall or space to rent for an event
They even have a tour guide that will take you around.its about two hours.
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