We visited the Colosseum as part of a tour which also included Palatine Hill and the Forum. The Colosseum is an amazing building and the history is very interesting. A must visit when in Rome. It wasn’t that crowded but we did visit early in the morning.
A WORD OF WARNING: Watch out for people in the vicinity of the Colosseum wanting to be your friend and giving you ‘free’ gifts, ie a bracelet which they put on your wrist before you know it (nothing is free). They start talking to you, want to shake your hand, give you a gift .... you start wandering off and so do they, then they engage you in conversation again and then expect money for the ‘gifts’ they have given you to help their family. They do not like it when you do not want to part with any money. Avoid if at all possible. We saw one person, over a period of around 45 minutes, approaching tourists and each time he used the same tactic and collected a fair bit of cash.More