The largest Banksy canvas known to exist, Devolved Parliament is among the artist's most prescient, as well. It depicts the House of Commons, filled with chimpanzees instead of MPs. First exhibited in 2009, it was purchased from the artist by its current owner in 2011, and measures over 14 feet wide by just over 9 feet tall. It was exhibited again this March in honor of "Brexit Day", a reminder of its importance in the modern political climate, and a signal of its place in the overall history of political satire. It will be auctioned off by Sotheby's in London and could well set the record for most expensive Banksy ever sold.