A castell is a human tower built traditionally in festivals at many locations within Catalonia. At these festivals, several colles castelleres or teams often succeed in building and dismantling a tower's structure. On November 16, 2010, castells were declared by UNESCO to be amongst the Masterpieces of the Oral and Intangible Heritage of Humanity.
Read more about Castell: Origin, The Castell, Attire, Structure, "Colles Castelleres"