Once every two years the city of Tarragona in Spain transforms into the Concure de Castelle aka the most important human tower competition in Catalonia.
Concurs de Castells 34 (the human tower competition held in the region of Catalonia, Spain) by David Oliete, Tarraco Arena Plaça, Tarragona
Castellers in Tarragona | Spain (by Estudi FGH.net)
Concurs de Castells, Tarraco Arena Plaça de Tarragona, Tarragona Province, Catalonia, Spain
Concurs de castells Tarragona 2008 42. Castellers de Sants 4de8 by fer55., via Flickr