This sculpture by architect Miguel Ángel Ruiz-Larrea, located by the Natural History Museum, was erected in Madrid in 1982 to pay homage to 1978 Spanish Constitution. The design hides a concave pyramid leading to the empty centre of the cube. Enjoy the surrounding Bellas Artes gardens. #park #parque #sculpture #madrid #spain #urbanist #travel #wanderlust #curioushumanics