Although I am not a Rabbi, I’d like to present you with the fact (in Halacha) about ‘Tumas Nochri B’Ohel’.
Although the Rambam and Tur originally state that corpses of non-Jews (via Ohel) as well as their graves do not transmit Tumah, they still write that a Kohen should refrain, and so does the Rema rule (YD:372). Some Achronim permit when it is in place of a Mitzvah. You may argue that taking your children (Chinuch?) to ‘Liberty Science Center’ is a Mitzvah…