Douglas Darden laughter was the laughter of three young girls, who were, in essence, their clients: the fourteen year-old twins, Cass and Polly, and their nineteen-year-old friend, Helen. Cass and Polly are most likely feminized renderings of the celestial twins of Greek mythology, Castor and Pollux (better known as Gemini), and their sister, Helen of Troy. Many of his original sketches and drawings for Oxygen House are now owned by the Museum of Modern Art, along with a select few of "Sex Shop" drawings; gifts of Darden's widow. The remainder of his drawings are held at the Avery Architectural and Fine Arts
Castor (mountain) Castor (mountain) Castor () is a mountain in the Pennine Alps on the border between Valais, Switzerland and the Aosta Valley in Italy. It is the higher of a pair of twin peaks (), the other being Pollux, named after the Gemini twins of Roman mythology. Castor's peak is at an elevation of , and it lies between Breithorn and the Monte Rosa. It is separated from Pollux by a pass at , named "Passo di Verra" in Italian and "Zwillingsjoch" in German. Ascents are usually made from the alpine hut "Capanna Quintino Sella" on the Italian side, by means