Barcelona, Spain. 25th Sep, 2016. The fireworks of the traditional 'Piromusical' in front of the 'Palau Nacional' illuminate Barcelona's night sky as they close the 'Merce' city festival Credit:  matthi/Alamy Live News
RMH29T11Barcelona, Spain. 25th Sep, 2016. The fireworks of the traditional 'Piromusical' in front of the 'Palau Nacional' illuminate Barcelona's night sky as they close the 'Merce' city festival Credit: matthi/Alamy Live News
A group of revellers dressed as demons chase passers-by through the streets and play with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce.
RM2D1GT26A group of revellers dressed as demons chase passers-by through the streets and play with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce.
Barcelona, Catalonia, Spain. 20th Sep, 2015. A child in a devil costume runs with his fireworks during the 'correfocs' fire-runs during Barcelona's city festival 'La Merce' 2015 Credit:  Matthias Oesterle/ZUMA Wire/Alamy Live News
RMF2KAMPBarcelona, Catalonia, Spain. 20th Sep, 2015. A child in a devil costume runs with his fireworks during the 'correfocs' fire-runs during Barcelona's city festival 'La Merce' 2015 Credit: Matthias Oesterle/ZUMA Wire/Alamy Live News
A reveller dressed as a demon chases passers-by through the streets and plays with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce. REUTERS/ Albert Gea
RM2D1R4PRA reveller dressed as a demon chases passers-by through the streets and plays with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce. REUTERS/ Albert Gea
`Correfoc´, typical catalan celebration in which dragons and devils armed with fireworks dance through the streets. In Via Laiet
RMGDPGFK`Correfoc´, typical catalan celebration in which dragons and devils armed with fireworks dance through the streets. In Via Laiet
Firework  in Barcelona. Light and music show at closing ceremonies of La Merce Festival
RFJTNM5AFirework in Barcelona. Light and music show at closing ceremonies of La Merce Festival
Family watching fireworks in Barcelona
RMBDM7YPFamily watching fireworks in Barcelona
Barcelona, Spain. 25th Sep, 2016. The fireworks of the traditional 'Piromusical' in front of the 'Palau Nacional' illuminate Barcelona's night sky as they close the 'Merce' city festival Credit:  matthi/Alamy Live News
RMH29T0HBarcelona, Spain. 25th Sep, 2016. The fireworks of the traditional 'Piromusical' in front of the 'Palau Nacional' illuminate Barcelona's night sky as they close the 'Merce' city festival Credit: matthi/Alamy Live News
Barcelona, Catalonia, Spain. 20th Sep, 2015. A child in a devil costume runs with his fireworks during the 'correfocs' fire-runs during Barcelona's city festival 'La Merce' 2015 Credit:  Matthias Oesterle/ZUMA Wire/Alamy Live News
RMF2KATYBarcelona, Catalonia, Spain. 20th Sep, 2015. A child in a devil costume runs with his fireworks during the 'correfocs' fire-runs during Barcelona's city festival 'La Merce' 2015 Credit: Matthias Oesterle/ZUMA Wire/Alamy Live News
A group of revellers dressed as demons chase passers-by through the streets and play with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce. REUTERS/ Albert Gea
RM2D2Y879A group of revellers dressed as demons chase passers-by through the streets and play with fireworks in central Barcelona, Spain, September 23, 2005. The fireworks show is a traditional festivity performed every September to honour Barcelona's patron saint La Merce. REUTERS/ Albert Gea
`Correfoc´, typical catalan celebration in which dragons and devils armed with fireworks dance through the streets. In Via Laiet
RMGDPGFB`Correfoc´, typical catalan celebration in which dragons and devils armed with fireworks dance through the streets. In Via Laiet
Firework  in Barcelona. Light and music show at closing ceremonies of La Merce Festival
RFJW1YDBFirework in Barcelona. Light and music show at closing ceremonies of La Merce Festival