in the capital", but later conflicted with plans for a grand central urban axis. In 1971–73, the dramatic Großgaststätte Ahornblatt (Great Maple Leaf Restaurant) was added to serve the neighbourhood, which ultimately also included the five 21-storey blocks, a double block with 18- and 21-storey sections, a swimming centre opened in October 1979, two kindergartens, and a supermarket. In 2000 the Ahornblatt was demolished, to be replaced by a multi-use centre including a hotel, flats and offices, despite protests that it should be preserved. As a result of the redevelopment of the site, the old locations of Roßstraße, Petristraße, Grünstraße and Gertraudenstraße can be seen in places. Fischerinsel is today the seat of Historic port of Berlin (Historischer Hafen Berlin), a non profit association focused on renovating old ships and giving them new life. One of them, MS Heimatland, built in 1910, is a seat of Hošek Contemporary, art residency and gallery. The gallery focuses primarily on site specific installations, performing arts and experimental sound installations. Notable buildings The Petrikirche (St. Peter's Church) on Petriplatz, abutting Gertraudenstraße on the north side, was the parish church of Cölln and is presumed to have been founded in the first half of the 13th century, around the time the cities of Berlin and Cölln were both granted their charters. The last of five churches on the site, the second neo-Gothic church in the city, was designed by Heinrich Strack and built in 1846–53. It had a spire high which was for some time the tallest building in Berlin. The building was wrecked by artillery fire and burnt during the battle for Berlin in 1945 because a Waffen-SS unit was holed up inside, and was demolished in 1964 as part of the clearance of the Fischerinsel. In its place will be built the House Of One - the world's first house of prayer for three religions. The last Cölln Town Hall (Rathaus) faced the Köllnischer Fischmarkt. It was designed by the court architect, Martin Grünberg, and built in 1710–23 in baroque style, but as a cost-cutting measure, the tower and entrance stairs were not built. It was demolished in 1899/90. The inn Zum Nußbaum at Fischerstraße 21, built in 1705 according to an inscription over the cellar entrance and named for the nut tree which formerly stood outside it, was one of the oldest remaining drinking establishments in the city. It was popular with