A visitor to Auschwitz is facing backlash after she smiled and struck a modeling pose for a photo while sitting on the railroad tracks leading into the former concentration camp.

Despite the Auschwitz Memorial Museum's calls for restraint over inappropriate pictures, MailOnline has uncovered dozens of other Instagram photos of tourists posing crudely at the death camp.

An O scale model train is 1:48, so 1 inch on the model equals 48 inches on a real train. Gauge, which indicates the length between the train track rails.