The competition was held in Vilafranca del Penedès on Sunday Aug. 30.
Dating back to the 18th century, the tradition of building human towers, also called castells, involves teams competing to build the tallest and most complicated towers.
The towers can go up to 10 stories – or about 15 meters – high and requires at least 300 to 400 people in a team, with both people climbing to the top and people on the bottom to sustain the tower’s weight.
Usually children are also involved as they can reach the top.
Teams are considered successful if they can construct and deconstruct a tower without anyone falling.
In 2010, UNESCO declared castells to be one of the Masterpiece of the Oral and Intangible Heritage of Humanity.