On my spare day I visited Edinburgh Castle as it was something a lot of people back home recommended. I sure wasn't disappointed. The castle was huge and is built upon a volcano, no wonder why it took me ages to get up there. The view from the top was amazing. The history of the castle was rather interesting too, I listened to an audio as I walked round. There are a few museums up there too, that are also related to the castle's history. If you were to go, I'd book it beforehand like I did as the castle does get rather busy due to being a very popular tourist attraction.