There are towns over which time seems to exercise but little power, but to have passed them by forgotten, in his swift course. Everywhere else, at his touch, all is changed. Great cities rise upon the site of fishing villages; huge factories, with their smoky chimneys grow up and metamorphose quiet towns into busy hives of industry; while other cities, once prosperous and flourishing, sink into insignificance; and the passer by, as he wanders through their deserted streets, wonders and laments over the ruin which has fallen upon them.