Ключевые слова: barcelona, castell, castellers, castells, castle, castles, catalan, catalonia, catalunya, city, construction, cooperation, coordination, crowd, culture, day, during, europe, festival, flag, group, history, human, humans, independence, nation, national, partnership, people, performance, popular, pyramid, rally, september, show, spain, spanish, spectacle, symbol, team, tower, tradition, traditional,