The Concurs de Castells takes place this weekend in Tarragona, Catalonia. I went in 2008 and shot a lot of still images, thinking all the time that this is one of those events that I would love to shoot on video. It is simply an unforgettable sight to see. The event is held every two years, so I went back in 2010, equipped with a Canon 5DMKII, a digital still camera which is also a professional-grade video camera. I shot this video, originally for the Sunday Times, but it was never published. So I put it up on Vimeo, a video-sharing website. Later, I also uploaded it to YouTube. It quickly went viral and was embedded in thousands of blogs and has been viewed 1.5 million times. But since I didn’t have a blog at the time, I never got to use it myself! So finally, it’s my turn.