Wild perspective in the large locomotive hall called "Cathedral" of the SBB industrial plant ("officine") in Bellinzona, at the open day on the occasion of the celebration of 175 years of Swiss Railways. The 100-meter-long, 30-meter-wide and 20-meter-high hall was built in 1919. Above the Ae 6/6 # 11421 "Graubünden" of SBB Historic hovers the 84 ton Re 420 # 271 (Re 4/4 II # 11271) of SBB Cargo, on the left is Re 420 # 337.