Kekulé. The inscription read: The inscription was subsequently removed after World War II. The Achilleion was eventually acquired by the Greek state and has now been converted into a museum. Kaiser's Bridge German Kaiser Wilhelm II was also fond of taking holidays in Corfu. Having purchased the Achilleion in 1907 after Sissi's death, he appointed Carl Ludwig Sprenger as the botanical architect of the Palace, and also built a bridge later named by the locals after him—the "Kaiser's bridge" (Greek: η γέφυρα του Κάιζερ transliterated as: i gefyra tou Kaizer)—to access the beach without traversing the road forming the island's main artery to the south. The bridge, arching over the road, spanned the distance between the lower gardens of Achilleion and the nearby beach; its remains, a monument to imperial vanity, are an important landmark on the highway. The bridge's central section was demolished by the Wehrmacht in 1944, during the German occupation of World War II, to allow for the passage of an enormous cannon, forming part of the Nazi defences in the southeastern coast of Corfu. Urban landscape Old town The Old Town of Corfu city is a UNESCO World Heritage Site. In several parts of the old city, buildings of the Venetian era are to be found. The old city's architectural character is strongly influenced by the Venetian style, coming as it did under Venetian rule for a long period; its small and ancient side streets, and the old buildings' trademark arches are particularly reminiscent of Venice. The city of Corfu stands on the broad part of a peninsula, whose termination in the Venetian citadel () is cut off from it by an artificial fosse formed in a natural gully, with a seawater moat at the bottom, that now serves as a marina and is called the Contrafossa. In the old town there are many narrow streets paved with cobblestones. These streets are known as (), and the older amongst them sometimes follow the gentle irregularities of the ground; while many are too narrow for vehicular traffic. A promenade rises by the seashore towards the bay of Garitsa (Γαρίτσα), together with an esplanade between the city and the citadel known as Spianada with the arcade () to its west side, where restaurants and bistros abound. Ano and Kato Plateia and the music pavilion Near the old Venetian Citadel a large square called Spianada is also to be