You do not have to print tickets. You can download them to your phone.
Yes, tickets are purchased with a scheduled day and time. If you miss the scheduled time, the ticket will expire.
Tickets to the Museum of Illusions are not refundable.
There is no time limit. However, visitors usually spend from 45 to 60 minutes in the museum.
Yes. It's a great place for kids and adults.
Waiting times vary. You can expect from 10 to 15 minutes during the week or during off-peak hours.