The project is developed based on the New Salzburg town hall competition, which asks to demonstrate a new possibility of government and public relationship. Hohensalzburg is an icon of the institutional building at Salzburg. It represents the remnant relationship between the public and government. With very restricted accessibility, a fortress lifted and isolated from the ground and stood still in the background of the cityscape. And the project tries to count-er those qualities. Projects like Netherland Embassy by OMA, Vitrahaus by Herzog de Meuron, Cabrillo Marine museum by Frank Ghery, Jewish museum by Daniel Lebskin are versions of this discussion. By introducing extra circulation spaces to allow more public spaces, more accessibilities, and more interactions between the government and the public and instead of falling into the city’s background, becoming a flatform of the city to create an integrated relationship, not segregated surveillance.