To get to the Athens airport from downtown, we took the Athens metro.
It was an amazing experience compared to the Cairo metro. The trains
were almost empty, as were the stations. No press of humanity trying
to get on and off. However, we had to get off one train and wait and wait
for a train that went all the way to the airport. The trains in Cairo run
every five minutes and are always packed at any time of day or night. From
what we saw in Athens, the trains ran only every half hour
and were empty. Go figure.