Colosseum was the most impressive building. Even today in its broken-down state, it still is incredibly impressive. I would love to be able to take a 3d-tour of the place as it was when it was built. A good second best will be watching The Gladiator again soon!
Saturday and Sunday consisted of highly concentrated sight-seeing. And then on Sunday evening a visit to Ristorante Mirabelle, a restaurant that carries a Michelin star. The food and wine was fantastic, and the view was to die for.
I had a walk around some of the small and atmospheric streets of Rome on Monday before catching the plane back to Bergen.
All in all a great trip! I will definitely be going back to Rome.
Here are some pictures of Rome, and a picture taken while flying over the alps (taken with a HTC Hero cellphone camera, so not great quality):