• One adult per 3 kids, since WONDR is designed for grown-ups and every child must come with an adult
• Free photos from every room when you scan your personal QR code, so the room cameras email you photos, GIFs and boomerangs
• Pick a time slot when you buy tickets online; a visit takes about 90 minutes, but you can stay longer

WONDR is a play attraction built for adults that welcomes kids with a grown-up. Fifteen themed rooms across 1,200 square meters hold what it calls Europe's largest ball pit, a pool of pink marshmallows, a confetti shower, a room of disco balls and fluffy karaoke booths. Cameras in each room send photos and GIFs to your inbox. It suits kids who like to jump and pose.