Camp Half-Blood is home to The Big House, where the Oracle of Delphi lived in the attic, before Rachel Elizabeth Dare took the Oracle into her own body. It also is a main meeting place for the leaders of the cabins, and Dionysus and Chiron enjoy playing pinochle on the front porch, the only true game according to Dionysus. To mortals it is just a strawberry field but to Demigods it's a large house