Thousands of people competed in Catalonia's human tower competition, Concurs de Castells, that took place in Tarragona, Spain. Around 32 teams, made up of 500 people, built human towers called castells.
The event was watched by approximately 20,000 from around the world. This sport dates back to the 18th century and is listed on Unesco's cultural heritage list.
Scroll down to take a look at human tower competition in Spain: