"Blue House", situated at 72 Stone Nullah Lane in Wanchai, is a pre-war building with more than seventy years of history that shows architectural characteristics of both Chinese and Western styles. Many of the internal structures like purlin, staircase, railing are still preserved in their authentic wooden fabric. There are still residents living inside and some of them have to share the kitchen. Since there is no flushing toilet facility inside the building, it still needs the service of "Tao Ye Heung" (somebody helps to remove the excrement from the building every night)!