Lionel Messi of FC Barcelona celebrates after scoring his team's fourth goal during the La Liga match between FC Barcelona and RC Deportivo La Coruna at Camp Nou stadium on October 15, 2016 in Barcelona, Catalonia.
Roof of the Sagrada Familia, Antoni Gaudí (1852–1926), architect. Barcelona, Catalonia. The columns of the interior are a unique Gaudí design. Besides branching to support their load, their ever-changing surfaces are the result of the intersection of various geometric forms. The simplest example is that of a square base evolving into an octagon as the column rises, then a sixteen-sided form, and eventually to a circle. Although incomplete, the church is a UNESCO World Heritage Site.