In 1565, Pieter Bruegel the Elder was commissioned to create a series of paintings for a dining room in Antwerp. The images, charting the course of a year, changed the way we view the world through art. Landscape had previously been a decorative backdrop to dramas both sacred and profane. But in Bruegel's hands the landscape and our interaction with it became the focus. Looking at paintings such as The Return of the Herd, Hunters in the Snow and The Gloomy Day, this lecture explores how Bruegel pioneered a whole new way of thinking about the environment and our individual places within a shifting cosmos.