A series of impressionist oil paintings of the Palace of Westminster, home of the British Parliament, in the autumn of 1899 and the early months of 1900 and 1901 during stays in London. All of the series' paintings share the same viewpoint from Monet's window or a terrace at St Thomas' Hospital overlooking the Thames and the approximate canvas size of 81 cm × 92 cm (32 in × 36 3/8 in). They are, however, painted during different times of the day and weather conditions
By the time of the Houses of Parliament series, Monet had abandoned his earlier practice of completing a painting on the spot in front of the motif. He carried on refining the images back home in Giverny, France and sent to London for photographs to help in this. This caused some adverse reaction, but Monet's reply was that his means of creating a work was his own business and it was up to the viewer to judge the final result.