I spent my first day in Greece inside. The rain was pouring down and I made myself comfortable in my hostel to plan out my next day. Greece is in the low season and the hostel is nearly empty, meaning I’ve had a 4 bed room to myself. About $27US a night with bathroom and shower in the room. Nice!
Next day I hit the major site: the Acropolis. The Acropolis rises from the Greek hills and overlooks Athens, like a shepard watching his sheep.
You buy a 12 Euro ticket ($16US) that gets you into the Acropolis, as well as 5 other sites in and around Greece. Extremely good value. Since Athens is pretty compact, you can walk almost anywhere if you have the time and inclination.
The Acropolis was the center of Greek commerce and government in ancient times, but with the wear and tear of the elements is now undergoing a major restoration project. Hence the very modern scaffolding and equipment mixed in with the ruins.