Every two years in Tarragona, Spain, this amazing display takes place in which people compete to create complex human towers. Called Concurs de Castells, the event occurs across two days in front of an audience of thousands. In 2012, each of 32 teams had five chances to build their most difficult and complex human towers for the judges, who tallied the scores and declared the winners at the end of the event.
During the precarious process, in which up to 500 men and women merge together into the wobbly structures, photographer David Oliete documented the event by hovering high above the chaos. As the large crowds physically supported each other to climb higher and higher, Oliete found ways to transform the lively and energetic event into a visual display of repetitive shapes, lines, and colors. From his extremely unique perspective, the photographer created this series of captivating geometric forms.