Title: Outline of Liechtenstein
Content: Capital of Liechtenstein: Vaduz ; Cities of Liechtenstein 
Title: Liechtenstein
Content:  Liechtenstein, officially the Principality of Liechtenstein (Fürstentum Liechtenstein), is a German-speaking microstate located in the Alps between Austria and Switzerland. Liechtenstein is a semi-constitutional monarchy headed by the Prince of Liechtenstein; the Prince's extensive powers are equivalent to those of a President in a semi-presidential system like France. Liechtenstein is bordered by Switzerland to the west and south and Austria to the east and north. It is Europe's fourth-smallest country, with an area of just over 160 km2 and a population of 38,749 (in 2019). Divided into 11 municipalities, its capital is Vaduz, and its largest municipality is Schaan. It is also the smallest country to border two countries. Liechtenstein is one of the only two doubly landlocked countries in 
Title: Liechtenstein National Museum
Content:  The Liechtenstein National Museum (Liechtensteinisches Landesmuseum) is a museum in Vaduz, the capital city of Liechtenstein.
Title: Vaduz
Content:  Vaduz ( or, High Alemannic pronunciation: []) is the capital of Liechtenstein and also the seat of the national parliament. The city, which is located along the Rhine River, has 5,696 residents. The most prominent landmark of Vaduz is Vaduz Castle, being perched atop a steep hill in the middle of the city. It is home to the reigning prince of Liechtenstein and the Liechtenstein princely family. The city's distinctive architecture is also displayed in landmarks such as the Cathedral of St. Florin, Government House, City Hall, the National Art Gallery, as well as the National Museum. Although Vaduz is the best-known town in the principality internationally, it is not the largest; neighbouring Schaan has a larger population.
Title: Outline of Liechtenstein
Content: Form of government: parliamentary representative democratic monarchy ; Capital of Liechtenstein: Vaduz ; Elections in Liechtenstein Political parties in Liechtenstein ; Taxation in Liechtenstein ; 2008 Liechtenstein tax affair Politics of Liechtenstein 
Title: University of Liechtenstein
Content:  The University of Liechtenstein (Universität Liechtenstein) is a public university located in the Principality of Liechtenstein. It focuses on two fields of study – architecture and business economics (entrepreneurship, finance, information systems, business law). The University of Liechtenstein is located in Vaduz, the capital of the principality. The students and faculty come from 40 countries, and the university has partnerships with 80 other institutions.
Title: Liechtenstein–Switzerland relations
Content:   Diplomatic and economic relations between Switzerland and Liechtenstein have been close, with Switzerland accepting the role of safeguarding the interests of its smaller neighbour, Liechtenstein. Liechtenstein has an embassy in Bern. Switzerland is accredited to Liechtenstein from its Federal Department of Foreign Affairs in Bern and maintains an honorary consulate in Vaduz.
Title: Liechtenstein
Content:  world (the other being Uzbekistan). Economically, Liechtenstein has one of the highest gross domestic products per person in the world when adjusted for purchasing power parity. The country has a strong financial sector centred in Vaduz. It was once known as a billionaire tax haven, but is no longer on any official blacklists of uncooperative tax haven countries. An Alpine country, Liechtenstein is mountainous, making it a winter sport destination. Liechtenstein is a member of the United Nations, the European Free Trade Association, and the Council of Europe. Although not a member of the European Union, it participates in both the Schengen Area and the European Economic Area. It has a customs union and a monetary union with Switzerland.
Title: Liechtenstein
Content:   Liechtenstein has a monarch as head of state, and an elected parliament that enacts the law. It is also a direct democracy, where voters can propose and enact constitutional amendments and legislation independently of the legislature. The Constitution of Liechtenstein was adopted in March 2003, replacing the 1921 constitution. The 1921 constitution had established Liechtenstein as a constitutional monarchy headed by the reigning prince of the Princely House of Liechtenstein; a parliamentary system had been established, although the reigning Prince retained substantial political authority. The reigning Prince is the Head of State and represents Liechtenstein in its international relations (although Switzerland has taken responsibility for much of Liechtenstein's diplomatic relations). The Prince may veto laws adopted by parliament. 
Title: Postage stamps and postal history of Liechtenstein
Content:   This is a survey of the postage stamps and postal history of Liechtenstein. The Principality of Liechtenstein is a doubly landlocked Alpine microstate in Western Europe, bordered by Switzerland to the west and south and by Austria to the east. Its area is just over 160 km2, and it has an estimated population of 37,000. Its capital is Vaduz and the biggest town is Schaan. The postal history of the principality pre-dates introduction of the first postage stamps in 1850. The principality was obliged to use Austrian stamps until 1912 when the first Liechtenstein issues were produced, although these were still issued under Austrian direction. Following the collapse of Habsburg Austria in 1918, Liechtenstein secured postal independence and began issuing its own stamps from July 1920.

Question: What is the capital of Liechtenstein?
Answer: Vaduz.