Headed out at about 10 am after enjoying the large free breakfast at the hotel. Went to the Vatican first after buying a Rome Pass for 25€ each which gave us unlimited public transportation and 2 entries for 3 days. Vatican was packed and we waited in line for about 20 minutes just to enter the cathedral because everybody had to pass through the metal detector and x-ray machine.
The church and plaza were fantastic and we took 100s of pictures. Next went to lunch and had more spaghetti and two 4€ cokes which was more than the food, which was crap anyway. After lunch we bought tickets for the hop on hop off bus for 15€ each and rode the bus to the coliseum. We got in free with the Rome Pass and we didn't have to wait in line because there was a special empty line for the Rome Pass. Coliseum was fantastic even though there were tons of people and we walked all around it.
After that we rode the Hop On Hop Off bus around a few times to relax and got off at a place and took pictures.
Stopped at an internet cafe on the way to the metro and then headed back to the hotel at about 10 pm. There were a lot of people in the street so walking was no problem after dark.