Though they weren't marketed/affiliated with historic sites, did any of these events have any kind of exhibit or site connection once people got there?

Example: I went to a circus show/sunset picnic at the Woodlands (it was awesome) that also had an Entomologist discussing and exhibiting wildlife found at the site. It seemed a really perfect way to draw people in with a monthly event while also connecting people to the site and demonstrating some programming.

Like, if they have a pop up beer garden in Fairmount Park, I think you'd be able to make an awesome exhibit about Brewerytown or German brewing or whatever you want, Ted! I would def attend...