The day we went if you got there late to scan the QR code (10am like us) you weren't going to get in until after 7pm, and if you came after 11am you weren't getting in at all. So get there early, enjoy the city, and most importantly clear your schedule.
You need to get in their virtual queue by scanning their QR in the morning (they start at 7am). We scanned the code around 7am and got in around 3pm.
4 hours, seriously.
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