Some of the UK's most famous publicly owned artworks were projected onto Norwich Castle, lighting up the entire walls last night.

It was part of a nationwide celebration of the country's collection of oil paintings, and images were also projected onto 27 other landmark buildings. At up to 26m wide, the projection in Norwich was the biggest and brightest in the country. The light show contained four paintings of national interest – Sunflowers by Vincent Van Gogh; George Formby: Speed Ace by Frances Broomfield; The Clay Pits, 1923, by Harold C. Harvey; and Karaoke by Beryl Cook - and another three paintings chosen for each region – with Thomas Gainsborough's Mr and Mrs Andrews, David Hepher's Arrangement in Turquoise and Cream, and LS Lowry's Coming from the Mill in Norwich. The celebration followed the completion of a website for the entire UK collection of more than 210,000 oil paintings, called Your Paintings. And it marked the start of a month of exhibitions and events organised by the BBC and the Public Catalogue Foundation.