Old map of Paris. From http://www.swaen.com/antique-map-of.php?id=2190
Paris is a city of centralisation—and centralisation and classification are closely allied. In the early times, when centralisation is becoming a fact, its forerunner is classification. All things which are similar or analogous become grouped together, and from the grouping of groups rises one whole or central point. We see radiating many long arms with innumerable tentaculae, and in the centre rises a gigantic head with a comprehensive brain and keen eyes to look on every side and ears sensitive to hear—and a voracious mouth to swallow.
Other cities resemble all the birds and beasts and fishes whose appetites and digestions are normal. Paris alone is the analogical apotheosis of the octopus. Product of centralisation carried to an ad absurdum, it fairly represents the devil fish; and in no respects is the resemblance more curious than in the similarity of the digestive apparatus.(...)
The Paris of 1850 was not like the Paris of to-day, and those who see the Paris of Napoleon and Baron Hausseman can hardly realise the existence of the state of things forty-five years ago.
Amongst other things, however, which have not changed are those districts where the waste is gathered. Dust is dust all the world over, in every age, and the family likeness of dust-heaps is perfect. The traveller, therefore, who visits the environs of Montrouge can go go back in fancy without difficulty to the year 1850.
Old map of Paris. Google images
1900 map of Paris. From http://gisdk.blogspot.com/2009/04/map-of-week-paris-circa1900.html..
Old map of Paris. From http://jqneo1983.bol.ucla.edu/
From The Burial of Rats. Bram Stoker, 1914