You may notice that the next photos of the Colosseum are in daylight. The next morning, on our way to checking out a few more places, we found ourselves walking past it again. And then we realized people were inside it. We altered our course and went to explore it as well.
We got to less than a quarter of what was available to see and do and, most importantly, eat in Rome. I wouldn't mind going back. I'd definitely recommend more than a weekend! Saying that, we still loved every minute we were there; I'm so glad we went!