The Reg flies to Germany to visit the Speyer and Sinsheim palaces of engineering marvels Geek's Guide The Register's Geek's Guide series for explorers who love feats of tech and engineering prowess, took a trip to the European mainland to see exhibits ranging from an Air France Concorde and a Soviet Tupolev Tu-144 "Concordski" to a Buran prototype, alongside various engineering marvels....