Spanish architects Arranguren & Gallegos have converted a brewery in Madrid into a museum with an underground gallery and triangular windows.
Access to the six-storey Museo ABC is through a courtyard paved with tessellated triangular glass and steel tiles that also cover one side of the building.
The museum houses a collection of drawings and illustrations.
The glazed triangles on the courtyard surface provide skylights to the basement exhibition hall below, where collections of illustrations are presented.
Description by architects.