instruction: Which parks are popular in London?
context: A 2013 report by the City of London Corporation said that London is the "greenest city" in Europe with 14,164 hectares (35,000 acres) of public parks, woodlands and gardens. The largest parks in the central area of London are three of the eight Royal Parks, namely Hyde Park and its neighbour Kensington Gardens in the west, and Regent's Park to the north. Hyde Park in particular is popular for sports and sometimes hosts open-air concerts. Regent's Park contains London Zoo, the world's oldest scientific zoo, and is near Madame Tussauds Wax Museum. Primrose Hill, immediately to the north of Regent's Park, at 256 feet (78 m) is a popular spot from which to view the city skyline.
response: Popular parks in London includes Hyde Park, Regent's Park and Kensington Gardens.