the Nagytétény Castle Museum, just 2 out of 223 museums in Budapest. Another historical museum is the House of Terror, hosted in the building that was the venue of the Nazi Headquarters. The Castle Hill, the River Danube embankments and the whole of Andrássy út have been officially recognized as UNESCO World Heritage Sites. Castle Hill and the Castle District; there are three churches here, six museums, and a host of interesting buildings, streets and squares. The former Royal Palace is one of the symbols of Hungary – and has been the scene of battles and wars ever since the 13th century. Nowadays it houses two museums and the National Széchenyi Library. The nearby Sándor Palace contains the offices and official residence of the President of Hungary. The seven-hundred-year-old Matthias Church is one of the jewels of Budapest, it is in neo-Gothic style, decorated with coloured shingles and elegant pinnacles. Next to it is an equestrian statue of the first king of Hungary, King Saint Stephen, and behind that is the Fisherman's Bastion, built in 1905 by the architect Frigyes Schulek, the Fishermen's Bastions owes its name to the namesake corporation that during the Middle Ages was responsible of the defence of this part of ramparts, from where opens out a panoramic view of the whole city. Statues of the Turul, the mythical guardian bird of Hungary, can be found in both the Castle District and the Twelfth District. In Pest, arguably the most important sight is Andrássy út. This Avenue is an elegant long tree-lined street that covers the distance from Deák Ferenc tér to the Heroes Square. This Avenue overlooks many important sites. It is a UNESCO World Heritage Site. As far as Kodály körönd and Oktogon both sides are lined with large shops and flats built close together. Between there and Heroes' Square the houses are detached and altogether grander. Under the whole runs continental Europe's oldest Underground railway, most of whose stations retain their original appearance. Heroes' Square is dominated by the Millenary Monument, with the Tomb of the Unknown Soldier in front. To the sides are the Museum of Fine Arts and the Kunsthalle Budapest, and behind City Park opens out, with Vajdahunyad Castle. One of the jewels of Andrássy út is the Hungarian State Opera House. Statue Park, a theme park with striking statues of the Communist era, is located just outside the main