43. Steelyard Passage Where? Creepy underpass beneath Cannon Street station, linking All Hallows Lane and Cousin Lane. What? Of all the byways we've commended in this column, none has presented such a singular collection of historic factlets and neoteric curiosities as Steelyard Passage. The Victorian brick arches are immediately atmospheric, plunging the passage-goer into an otherworldly darkness that banishes the open skies of the Thames. The first thing you notice is the azure lighting that......