The stone-built Casa de Moneda, or mint, is home to the Colección Numismática, its displays chronicling the history of money in Colombia from the barter systems of indigenous communities to the design and production of modern banknotes and coins. Ramps lead to the Colección de Arte, featuring a permanent exhibition of works owned by the Banco de la República. The predominant focus here is on contemporary Colombian artists, but the pieces on display range from seventeenth-century religious art through to modern canvases by twentieth-century painters. Behind the permanent collection is the Museo de Arte, a modern, airy building that houses free, temporary exhibitions of edgy art, photography and challenging installations.