Greenland National Museum

Children and students enter free, though the museum gives no age limit for who counts as a child, and on a handful of Mondays each year entry is free for everyone. The museum runs on two seasons: a full summer day from morning to late afternoon, and a shorter winter window that only opens around midday. That is the trade-off for a winter visit: there is no morning slot, so the museum has to fit into the afternoon. Families who want a guide can book a private tour for their own group, charged by the hour on top of entry, and guided tours are free for educational institutions.