If dance names such as Kalamatianos, Aloniotikos, Ballos and Pentozali sound “all Greek” to you, an evening at the Dora Stratou Theater will provide an ideal and fascinating initiation into the world of traditional Greek dancing. Even seated, your feet will soon be tapping to the rhythm, while the spectacle and music (live, of course) will remain with you long after the 90-minute performance. This year, the open-air theater, nestled on lush green Philopappou Hill, celebrates its 50th anniversary. The theater is the legacy of an inspired Athenian, who dedicated her life to preserving tradition by traveling all over Greece recording and collecting dances, music and authentic costumes. Even if the idea of “folk art” normally bores you stiff, the authenticity of this unique experience will leave you feeling exhilarated.