On the last day of Hajj after pelting pebbles at the Shaitans i went back to Arafat via train for a farewell visit 
Train passing by

Inside the train, some of trains had 17 cars attached to them which on the main Hajj day displaced some 3000 pilgrims per train from Arafat to Muzdalifa in minutes, which was really awesome 

video screens inside the train
