

Paradox Museum Barcelona features over 70 interactive exhibits showcasing optical illusions and visual paradoxes. On Sundays in May and June, children get in free and can join free paradoxical workshops from 11:00 to 13:45, where kids create their own optical illusions. Adults pay the regular admission price. The museum is one of more than a dozen Paradox Museum locations worldwide, combining hands-on activities with interactive displays designed for all ages.