Vaduz is the capital of the principality of Liechtenstein and the seat of the national parliament. The town, located along the Rhine, has about 5,100 inhabitants (as of 2009), most of whom are Roman Catholic. Its cathedral is the seat of a Roman Catholic archbishop. While Vaduz is better known internationally, it is not the largest town in the principality: neighbouring Schaan has a greater population.aduz has a lively tourist industry, despite being one of the very few capital cities in the world without an airport or railway station. The closest railway station is Schaan–Vaduz located around 2 km from the city centre in the town of Schaan.