Cool, there are some glitches and fun stuff in CS. Italy has 2 interesting things. One is in the wine cellar. If you get someone to boost you, you end up near T-spawn. Maybe this is similar to what the two guys did with the bomb. I guess some places you can pass thru or drop thru.
The other is, if you go to free view there is a room above the apt. by the T-side exit. In the room there is a painting that looks like a guy getting friendly with a sheep!

Office had something but I can't remember. There are others check the Net.