When Albert Speer was sentenced to 20 years for war crimes, he passed the time by walking around the Spandau Prison gardens with a Baedeker’s travel guide, imagining he was on a hiking holiday. The first 2,000 laps got him to Heidelberg, then he set off for the Far East, before heading down the coast of America. When he was released, Speer asked a friend to pick him up 20 miles south of Guadalajara.