expedition at the beginning of the 19th century. Many of the streets have retained their original stone paving, and several of those which climb the hills, are pedestrianized and have steps. Near the seafront is the central city square, the Square of the Three Admirals, surrounded by buildings whose ground floor houses, most often under arcade galleries, markets, bakeries, shops and traditional cafes. The seaside, to the north-west of the city, follows a recently pedestrianized street which leads from the central square to the modern port, passing through the Francomahalas district. In this street, aligned along the old port, are several traditional fish taverns. The port is dominated by the City Hall of Pylos. Next to it is recently renovated two-story house of the Olympic champion Kostis Tsiklitiras, in which a museum has been installed, which exposes a collection of paintings, engravings and ancient documents collected by the French philhellene, historian and writer René Puaux (1878–1936). A little further, still following the seaside, is the historic building of the College of Pylos which was founded in September 1921 by royal decree and built in 1924. After the cessation of its activities in 1987, the building housed until very recently the Institute of Physical Astrophysics "Nestor" of the National Observatory of Greece. The institute is in charge of the international research project NESTOR and its underwater neutrino detector, which is installed more than 4,000 meters deep, in the deepest marine trench of the Mediterranean Sea, 31 km off Pylos. In September 1992, the historic building of the College of Pylos was classified by the Ministry of Culture as a Preserved Historic Monument and will house soon in the near future the public library and gallery of the municipality of Pylos. The city also has bank branches, a post office, various clinics, a health center, a fire station, a sailing school, nurseries, primary schools, a college, a high school and a music conservatory recognized by the State. The city is also home to several cultural and development associations. The central square of the Three Admirals Also built by French troops of the Morea expedition in 1829, the central square of Pylos is characterized by its triangular geometric pattern, one of the sides of which opens onto the sea and the port of Pylos, and whose two other sides are bordered by covered galleries with arcades, built with a succession of contiguous arches,