Advance tour tickets in March

We already bought tickets to the Colosseum and Vatican for our March trip - wife isn't really interested in Borghese. We were told that those three places should be prepurchased, even in March....

Thank you for your prompt reply...I will go ahead and purchase advance tickets thanks to you!

"Borghese Gardens" (Villa Borghese) is the park; Galleria Borghese is the museum IN the park. Pre-reservations for a 2-hour time slot at that one are mandatory all year so definitely get tickets in advance!

My story. I went to the Vatican Museums 3 times all in February. The first time was a Monday (the only day possible for me) and since I knew it was usually the most crowded day of the week, I bought in advance a couple days earlier and I skipped the long line, at 9 am. I met a couple inside who arrived about the same time and waited an hour to get in. The second time was a Thursday at the end of February and again I bought in advance. There was no line at all. The third time was again the last Thursday in February. Based on my experience of 2 years earlier, I didn't buy in advance. I got there and found a long line. I spoke to some people who were near the end of the line who said they'd already been waiting nearly an hour and the line was hardly moving. I walked to the metro and went elsewhere. So I've only been inside twice.

To be clear, the Vatican sights are St Peter's and the museums. There is no ticket for St Peter's but there is a security check and that causes long lines. The best thing is to go early, around 7-9 am before the crowds come and the line gets backed up. It's a 10-15 minute walk from the museum entrance to St. Peter's. The only way to avoid the security line at St. Peter's is to use the exit from the Sistine Chapel. That is reserved for groups. Sometimes the guards let individuals use it.