Cologne Cathedral (red), 1985 by Andy Warhol

Average Price:£52 —— Andy Warhol is probably the most famous member of the Pop Art movement. Virtually any image that was in the public domain was a prime target for the Warhol treatment. Sculptures of Brillo soap pad boxes, Coca-Cola bottles and replications of popular icons such as Elvis Presley, Elizabeth Taylor and most famously Marilyn Monroe are just some of his huge body of work.