I do recall a "late" at the London Science Museum where you could collect wristbands with the names of STDs to win prizes. Ok, still not very educational, but it was quite amusing to hear people trading gonorrhea for genital lice etc.
On a more serious note they do or did offer free lectures that were much more in-depth; one of the things I rather miss now that I live abroad.
In depth science lectures would definitely be a step in the right direction. I think those are gone though:
"Our evening events cover everything from cult film screenings and live performances to gripping panel discussions and exclusive premieres—we’ve got something for everyone."
https://www.sciencemuseum.org.uk/see-and-do/halloween-lates