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 sidestreets, and the old buildings’ trademark arches are particularly reminiscent of Venice. Of the thirty-seven Greek churches, the most important are the city’s cathedral, the church dedicated to Our Lady of the Cave (η Παναγία Σπηλιώτισσα (hē Panagia Spēliōtissa)); Saint Spyridon church, wherein lies the preserved body of the patron saint of the island; and finally the suburban church of St Jason and St Sosipater (Αγιοι Ιάσων και Σωσίπατρος), reputedly the oldest in the island, and named after the two saints probably the first to preach Christianity to the Corfiots.