Originally I was going to take a Rabbies tour to Stirling Castle from Glasgow. Unfortunately the tour I wanted - the Stirling Castle, Loch Lomond & Whisky tour - has been discontinued as of this month and the Whisky aspect has been switched to some kind of cruise. So it's not as appealing to me now and from what I've been reading, you don't spend that much time inside the castle on their tour.
So now I'm planning to just go there on my own. I will take the train from Glasgow to Stirling, then walk or grab a cab up the hill to the castle (and hopefully take advantage of the free tour). After that, I plan on walking back to the town and visit some of the sights there before I leave. I also plan on buying a Historic Scotland membership at the castle, although I have already booked my ticket online (no cost - you can book it without paying and then show proof of membership when you get there).
My question is once I'm finished seeing the castle, I'm not sure where to go in town. I've bookmarked some places that look interesting, like the Holy Rude Church (and adjoining cemetery), Lord Darnley's house, and Mars Wark but was wondering what else I might be missing. I thought about going on to see the Falkirk Wheel but it seems like it would be fairly cumbersome to get there by public transportation and then back to Glasgow. I'm especially interested in historical sights. Any ideas would be appreciated, including any interesting things to see at the castle! Thank you!