"The pair of cabins at the head of the field, numbers one and two, looked like his and her cabins mausoleums, big white marble boxes with heavy columns in front. . .Cabin Two was more graceful somehow, with slimmer columns garlanded with pomegranates and flowers. The walls were carved with images of peacocks."
~The Lightning Thief


Hera doesn't have any demigod children, so her cabin is honorary.