The first Vaduz Castle was built as a fortress in 1130. Much of this original structure was destroyed by the Ottomans in 1683. When reconstruction finally began 200 years later during the reign of Prince Johann II, it stayed faithful to the original Romanesque style. The old medieval walls can still be seen on the main floor and lower levels. Today the castle is one of the rarest 12th century Romanesque secular buildings still in existence in Europe.
Since Vaduz Castle is the palace and official residence of the Prince of Liechtenstein, it is not open for tours, however visitors are allowed to walk around the grounds. Although it is possible to drive up to Vaduz Castle, there is no public parking available on site. The easiest way to reach it is via a well-marked narrow lane that begins in the city center. The road switchbacks up the hill, eventually becoming a forest trail. Signs along the path provide interesting facts about the culture, economy, and history of the country and the capital. The gorgeous view from a viewing terrace at the top of the hill is a bonus.