We're going to Italy in January 2019, and wondering if we need to purchase the advance tickets before we go or if we can just purchase them while there. Maybe a day or two before we plan on those venues. Does it matter?
Also, I've looked at these two sites. Are they the correct ones? I think I've read that the Vatican has time slots you pick. Is the Colosseum the same or is it just show up and skip the line on the day purchased?
For the Colosseum site, there are several different options. Which one is best? Are there ones to avoid. The trip is just my wife and I. We have about 2 or 3 days in Rome and about the same in Florence and some other outings such as Bern and Zermatt Switzerland and hopefully a soccer/football game in Milan, as a reference.