We have been in Athens before a few times, once on a bus tour, we chartered a sailboat from here and a couple of times of a cruise ship. To me Greece has its beauty in the water and the islands not the big city of Athens, yes of course you have to see the Acropolis while you are here, visit the Plaka(shopping district) but basically Athens is just a big smoggy city. Piraeus is the port city to Athens and has gotten so built up over the years we have been coming, it just seems like it part of the city now. we were going to take a hop on Hop off bus but instead decided to take a little train that takes us around Piraeus, we were the only passengers, haha. we were hoping to find the area we had chartered out of here about 20 years ago but the harbor has grown so much.