Wikipedia
The Muixeranga is the collective name given to the performance of ancient street dances and human castles, originating in the ancient Kingdom of Valencia (actually Valencian Community), which are still preserved in the town of Algemesí, southwest from Valencia.
The muixeranga is much more than an artistic acrobatic dance. It is a collection of ancient human choreographies of enormous plasticity illustrating various figures and shapes, which are held during the Algemesí town festival (September 7 and 8th), in honor of the Virgin of Health (Mare de Déu de la Salut).
The Muixeranga resembles the modern castellers in many ways, the latter being spread all over Catalonia. Both traditions share the same origin, the "Moixiganga", (a series of dances of human towers) once found throughout the Iberian Peninsula. Muixeranga differs from castellers mainly in that the Muixeranga has a more religious background, is accompanied by a dance, and does not care too much about the height of the human towers, trying to find a plastic, figurative scene.