• Half price in the first hour after opening, every day, so an early start cuts the cost of a family visit
• The funicular runs again from Újezd via Nebozízek to Petřín, every 10 minutes since Sep 22, so you can ride up instead of walking
• Under-15s need an adult over 18 with them to get in

A wooden pavilion shaped like an old Gothic city gate, built for the 1891 Jubilee Exhibition and moved to Petřín Hill the next year. Kids wind through a maze of 35 mirrors to a large painted diorama of Prague's 1648 fight against the Swedes on Charles Bridge, then end in the Hall of Laughter, where warped mirrors stretch and squash them. The Petřín Lookout Tower stands a short walk away.