If you like live theater, book yourself a seat for a play or other stage show at Tzeni Karezi Theater. Check online for prices and times.
The entry fee at Tzeni Karezi Theater gives you plenty of value for money. After you've experienced some magic moments at this well-liked arts and culture attraction in the affluent neighborhood of Kolonaki, why not take a look at other sights in the area? Acropolis Museum, Parthenon and Ancient Agora of Athens are a few nearby.