In Photos: The 27th Human Tower Competition

Supporters of the collas sing the Catalan National Anthem Els Segadors.

Photograph: Maja Hitij/Getty Images

Sweet victory: The Colla Vella de los Xiquets de Valls react after winning a casteller contest.

Photograph: Jaume Sellart/EPA

Sea of colours: Castellers de Vilafranca wearing green form their tower.

Photograph: Albert Gea/Reuters