Ancient Greece. It's one of the most lore-filled civilizations in the Western world, with tales and legends and myths that we still regularly tell today. If you'd like to enter that realm and fight monsters and sail the Mediterranean, you're in luck. The Arkadia setting book for Dungeons & Dragons is now available.
It's sometimes hard to separate out fantasy Ancient Greece with actual Ancient Greece. The stories and mythology of that region are so ingrained in our knowledge of the land. Gorgons, Cyclopses, Hydras, Minotaurs, and more give the land an otherworldly feel. Arkadia is a new setting book for 5th Edition that brings your characters to that heroic time and place. The book is up on Kickstarter now.