Located at the southern slope of Acropolis, this is largest monument reflecting the glorious phase of arts and culture from erstwhile Greek civilization. Named after Dyonisos, the God of drama and wine, this stone theatre,first of it's kind in the world, built in 5th century BC hosted many performances and precursor to iconic Greek tragedy. It fell into disuse and later remodeled during Roman times, witnessed many ups and downs. The curvilinear wall, seating, expansive stage indicate the intricate design and richness of unique architecture. Presently one phase of restoration is in progress. Signage at the site is informative and educative. As this is part of Acropolis,no separate ticket is required as general admission ticket is enough.