Your kids call it an interest; you call it an obsession: that all-encompassing thing that’s engulfed them so intensely that they’ll barely pull themselves out of their weird little world to say hello.

What might pull them out, at least for a little while? A vacation focused around their latest fascination that the whole family can enjoy. We’ve matched five famous kid-obsessions with 10 cities that will help feed their hunger—and maybe turn it into a lifelong passion.