The National cultural monument Zvíkov Castle is an outstanding example of the Czech medieval architecture. Establishment of the Castle took place in the first half of the 13th century during the rule of Wenceslas I (1230-1253). Zvíkov as the Royal property had a role of a military fortress in particular. The Castle obtained the greatest glory in the 14th century during the rule of Charles IV. (1346-1378), when was Zvíkov thoroughly renovated. Until the construction of the Karlštejn Castle was completed, Zvíkov served as a temporary sanctuary for the Crown Jewels.