Since the city straddles the Reuss River where it drains the lake, it has a number of bridges. The most famous is the Chapel Bridge (Kapellbrücke), a 204 m (669 ft) long wooden covered bridge originally built in 1333, the oldest covered bridge in Europe, although much of it had to be replaced after a fire on August 18, 1993, allegedly caused by a discarded cigarette. Part way across, the bridge runs by the octagonal Water Tower (Wasserturm), a fortification from the 13th century. Inside the bridge are a series of paintings from the 17th century depicting events from Lucerne's history. The Bridge with its Tower is the city's most famous landmark.