• Kids' art guide Ou leaves tips beside three artworks, and keeps a postbox in the cloakroom for kids' letters
• Borrow gear for the square: skateboards, scooters, street chalk and helmets from the shop, plus kids' hearing protectors at the cloakroom for loud rooms
• Stroller-friendly entrance on the Lasipalatsi Square side, with strollers allowed in the halls and a baby care station by the cloakroom

Amos Rex is a contemporary art museum built underground, beneath Lasipalatsi Square, lit by the domed skylights kids clamber over up top.

Inside, Studio Rex ties drawing, books and hands-on materials to each exhibition, and Ou, the museum's art guide for children, leaves tips beside three artworks. The shop lends skateboards, scooters and street chalk for the square outside.