The construction of human towers known as "castells" was celebrated at the 25th annual Castells Competition in Tarragona in the Catalonia region of Spain.

castellers
Castellers Colla Vella Xiquets de Valls form a human tower called "castell" during a biannual competition in Tarragona, Spain. The formation of human towers is a tradition in the area of Catalonia (Reuters)

The "Castellers", who build the human towers compete in teams known as "colles", aim to build the highest and most complex tower. The tradition dates back to the end of the 18th century and is an important part of Catalan culture.

IBTimesUK presents a gallery of spectacular photos taken at the Tarragona Castells Competition, held in the Tárraco Plaza bullring.