As interesting as Incan history can be to adults, to kids even the most awe-inspiring sites can start to look like a bunch of rocks. The ChocoMuseo provides a great time-out for children (and grown-ups, too). Exhibits on the history of chocolate take you all the way from bean to bar, explaining how one of the world’s all-time favorite flavors reaches the forms you know and love. The museum’s workshop is especially recommended: Participants make their own candy . . . and devour it as soon as it hardens.