Ever wondered what goes into everyone's favourite late-night snack? Take a trip to the land of the kebab. See more like this on www.channel4.com/fourdocs
Leonard Knight had a vision and decided to build a monument to Jesus. 17 years later, Salvation Mountain is a huge harlequin coloured roadside attraction made out of mud, old paint and adobe. See more docs like this on www.channel4.com/fourdocs