I believe you can't go to Rome without visiting the Colosseum; and having visited earlier this year, I have some insider tips to help you plan your visit and make it the best it can be. For the first time in history you can take a tour of the underground level, and combine it with a trip to the highest third tier level, which is open for the first time since the 1970s. This way, you get to learn about ancient Roman civilization, and you see it how the gladiators saw it, as you make your way through the tunnels where lions and tigers roared while the gladiators prepared to fight. As they're trying to protect the areas below ground; access is limited to one tour per slot, so rather than fighting the crowds you'll be with a maximum of 24 people. It is so unbelievably atmospheric down there, you can let your imagination run wild as your guide tells you about the history of the underground areas. When you're taken to the third tier, that is equally as mind bl...