Among facilities available on board "Queen Mary", the liner featured two indoor swimming pools, beauty salons, libraries and children's nurseries for all three classes, a music studio and lecture hall, telephone connectivity to anywhere in the world, outdoor paddle tennis courts and dog kennels. The largest room onboard was the cabin class (first class) main dining room (grand salon), spanning three stories in height and anchored by wide columns. The ship had many air-conditioned public rooms onboard. The cabin-class swimming pool facility spanned over two decks in height. This was the first ocean liner to be equipped with her own Jewish prayer roompart of a policy to show that British shipping lines avoided the antisemitism evident at that time in Nazi Germany.