Monte Pellegrino, which is geographically separated from the rest of the range by a plain. The mount lies right in front of the Tyrrhenian Sea. Monte Pellegrino's cliff was described in the 19th century by Johann Wolfgang von Goethe, as "the most beautiful promontory in the world", in his essay "Italian Journey". Rivers Today both the Papireto river and the Kemonia are covered up by buildings. However, the shape of the former watercourses can still be recognised today, because the streets that were built on them follow their shapes. Today the only waterway not drained yet is the Oreto river that divides the downtown of the city from the western uptown and the industrial districts. In the basins there were, though, many seasonal torrents that helped formed swampy plains, reclaimed during history; a good example of which can be found in the borough of Mondello. Districts Shown above are the thirty five quarters of Palermo: these thirty five neighbourhoods or "quartiere" as they are known, are further divided into eight governmental community boards. Landmarks Palermo has a large architectural heritage and is notable for its many Norman buildings. Palaces and museums Palazzo dei Normanni (the Norman Palace), a notable example of Norman architecture, this palace houses the Cappella Palatina. Zisa (1160) and Cuba, magnificent castles/houses historically used by the kings of Palermo for hunting. The Zisa today houses the Islamic museum. The Cuba was once encircled by water. Palazzo Natoli Palazzo Chiaramonte Palazzo Abatellis: Built at the end of the 15th century for the prefect of the city, Francesco Abatellis. It is a massive though elegant construction, in typical Catalan Gothic style, with Renaissance influences. The Gallery houses an Eleonora of Aragon bust by Francesco Laurana (1471) and the Malvagna Triptych ( 1510), by Jan Gossaert and an Annunziata by Antonello da Messina. Antonino Salinas Regional Archeological Museum: museum includes numerous remains from Etruscan, Carthaginian, Roman and Hellenistic civilisations. It houses all the decorative remains from the Sicilian temples of Segesta and Selinunte. Palazzina Cinese royal residence of the House of Bourbon-Two Sicilies and location of the Ethnographic Museum of Sicily. Churches Palermo Cathedral: the long history of the cathedral led to an accumulation of different architectural styles, the latest being the 18th century. Cappella Palatina, 12th century chapel of the Palazzo dei Normanni, has outstanding mosaics in both Western and the Eastern traditions and a roof by Saracen craftsmen.