St. Marks Basilica - Book Ahead by candert
If you plan on going to St. Mark's, and you definitely should, save yourself the hassle of lines and prebook entrance. Go to:http://www.alata.it/eng/booking/sanmarco.asp
This webiste allows you to preplan your time to view this great church. It's free. All you do is pick the time and print off the confirmation. Bring it to the guard at the front of the long line, and they'll wave you in.