It takes a few minutes to figure it all out, ATM is the transportation system in Milan, it's not what you are thinking. 1.5 Euros for 90 minutes to make all your connections within that time frame but I prefer the 24 hours unlimited usages at 4 Euros. I prefer taking a bus #81 to the Lima station to take the M1 red line to the Expo site which is outside the urban area at 8 Euros because of the subways accessibility issues where there often is no elevator nor escalator to the street level. ADA standards are nonexistence elsewhere, even in industrialized nations as Italy.
It's only an hour flight, Cuban visa can be bought during check-in at the airline counter before departure, just don't forget your passport. I exchanged dollars into their convertible (CUC) pesos upon arrival. I stayed at an hostel next to the baseball stadium. I focused on videotaping their culture alone rather than being somewhat biased traveling group with their hectic schedule. One day took a Soviet era Lada taxi to outskirts of Havana to visit a Deaf school. They asked me what we Deaf Americans do with our obsolete TTY as we are using VP nowadays, hopefully some organizations will donate those equipment. I felt like was blasted into the past, surrounded by all those vintage automobiles.