The sierra de Collserola (pronounced approximately "syera day Coy-se-roll-a") is a place in the Litoral mountains between the rivers Besós and Llobregat. It separates Barcelona from the depression of the Vallés. Its tallest peak is the Tibidabo, at 512 m. To preserve this space, in 1987 the Parc de Collserola (Collserola Park), which has an area of 84.65 km², was established. Llobregat - The second greatest river in Catalonia, starts in Castellar de nHug (Berguedà), near Berga, ends in the Mediterranean Sea, near Barcelona. ... Location Coordinates : Time Zone : CET (GMT +1) - summer: CEST (GMT +2) General information Native name Barcelona (Catalan) Spanish name Barcelona Nickname Ciutat Comtal (Catalan) Ciudad Condal (Spanish) Postal code 08001-08080 Area code 34 (Spain) + 93 (Barcelona) Website http://www. ... Tibidabo is a hill overlooking Barcelona, Spain. ... 1987 (MCMLXXXVII) was a common year starting on Thursday of the Gregorian calendar. ...

Over the Vilana hill, at 445 m rises the Torre de Collserola (Collserola Tower), a telecommunications tower built in 1992 for the use of Olympic games. It is 268 m and was built by the British architect Norman Foster. 1992 (MCMXCII) was a leap year starting on Wednesday. ... A new dome for the restored Reichstag in Berlin, housing the German parliament. ...