Old Town Bridge Tower (Staromestska mostecka vez) is a masterpiece of Gothic architecture with an excellent interior viewing room. Inside the tower is an exhibition of old musical instruments from the National Museum collections, but the main interest is the 138-step climb to the roof, for amazing views across the river. The exterior is decorated with three sculptures – the figure of St Vitus, King Charles and Wenceslas IV.
During repair work on the tower’s roof, two mysterious signs were discovered. The text of these signs forms a palindrome (without spaces between the words) and is thought to be a spell for strength and power.