There are many historical buildings, Liechtensteiner properties and sites in this small country. Here, they are organized according to municipality.

The central landmark of Vaduz is the Castle, actually a medieval fortress expanded in the 16th and 17th century. The earliest explicit mention of the fortress was in a document with which Court Rudolf von Werdenberg-Sargans pledged the fortress to Ulrich von Matsch. The owners at the time – and probably also the builders – were the counts of Werdenberg-Sargans.

The castle keep (12th century) and the buildings on the eastern side are the oldest part of the complex. The tower’s footprint is 12 by 13 meters; the thickness of its walls at its base is up to 4 meters. The original entrance was on the courtyard side at 11 meters height.

The basic structure of the Chapel of St. Anna was probably established in the High Middle Ages. The main altar is late Gothic. In the Swabian War of 1499, the Swiss burned down the Castle. The round tower was built from 1529 to 1532. The western side was expanded by Count Kaspar von Hohenems (1613 – 1640).

Since 1712, the Castle has been in the possession of the Princes of Liechtenstein. The Castle served as a temporary seat for the imperial administrator, but the large part of the building became increasingly dilapidated. Under Prince Johann II, the Castle was finally extensively restored from 1905 to 1912 and was later converted into a residence by Prince Franz Josef II. The Castle has been the permanent residence of the Princely Family since 1938. It is not accessible to the public.