Our trip from Zagreb to Corfu involved a slight detour to a third country, Hungary. After a seven-hour train ride to Budapest, we had a few hours to figure out how to get to the airport. Fortunately a train goes there from the station downtown, unfortunately it leaves from the other train station. So, we had to get some cash, figure out the trolley system to get across town, and get on another train. We got to the airport right before they closed the check-in counter, and got through security …