Train conductor Juan Marcus takes the Palma-Soller train into a tunnel in the Spanish Balearic Island of Mallorca on July 14, 2021. - Inaugurated in 1912, the Palma-Soller railway line is one of the oldest routes still in operation in Spain. The wagons and locomotives retain their original designs, with maintenance and repairs carried out in the railway's own workshops, respecting the initial model. (Photo by JAIME REINA / AFP)