A rider goes through flames during the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. Over one hundred horses jumped through bonfires in a purification ceremony on Wednesday (January 16) during the Spanish festival of "Las Luminarias" in San Bartolome de Pinares village, northwest of Madrid. REUTERS/Juan Medina

A rider goes through flames during the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. The traditional celebration takes place in San Bartolome de Pinares every January 16, the eve of Saint Anthony's Day, Spain's patron saint of animals. REUTERS/Juan Medina

A rider goes through flames during the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. Local residents light bonfires, before horses and their riders leap from the cobble-stoned streets through the flames in a spectacle described by one onlooker as "amazing". REUTERS/Juan Medina

Riders go through flames during the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. REUTERS/Juan Medina

A rider goes through flames during the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. REUTERS/Juan Medina

Riders wait for the start of the annual "Luminarias" celebration on the eve of Saint Anthony's day, Spain's patron saint of animals, in the village of San Bartolome de Pinares, northwest of Madrid, Spain, January 16, 2020. REUTERS/Juan Medina