Kara Walker's recent Hyundai Commission is a 45-foot-high fountain at Tate Modern, exploring the historical tether between Africa, America and Europe with inspiration from the Victoria Memorial in London. Water, Tate says, has its own significance in the work, “referring to the transatlantic slave trade and the ambitions, fates and tragedies of people from these three continents.” The title of the work: “Fons Americanus.”