The Park Přátelství is the central green area of the housing estate Prosek in the north of Prague and is appreciated as perhaps the most outstanding example of modern public park in the Czech Republic. Designed by leading Czech landscape architect Otakar Kuča, the park was originally conceived to cover 23 hectares of land. Five years after the competition when the implementation of the award-winning scheme started, the site area was reduced to 8 hectares. Despite such dramatic reduction the project retained its most significant feature: a waterway in a concrete bed forming an irregular zig-zag line with eleven overflows and a waterfall conceived as an abstract sculptural work.