How to Build a Citadel

La Citadelle de Québec consists of several layers of fortifications that are not discernible to an eye outside the fortification. This has to do with the well-planned angle of the tops of the fortifications. Thankfully, designers said about explaining this through some graphics. While I do not have a great shot from outside the fortress of the angle, you can see some of the even slope in this photo from the top of the wall looking out towards Ville de Québec outside the city walls.

La Citadelle today, looking towards modern Québec
La Citadelle today, looking towards modern Québec

The fortification is composed of several different layers. This graphic colour codes them. For reference to the photo above, I am not standing “vous étes ici.” Rather, I am at the tip of bastion in the upper left of the diagram, just behind the pink—not red—line.

Colour-coded map of the fortification
Colour-coded map of the fortification

This graphic shows how la Citadelle would have been defended back in the 19th century. Note the lack of armoured vehicles as seen in the above photograph.

Cutaway of the fortification walls
Cutaway of the fortification walls

Credit for the piece goes to the design team behind the graphics.

Author: Brendan Barry

I am a graphic designer who focuses on information design. My day job? I am the data visualisation manager for the Federal Reserve Bank of Philadelphia. (This blog is my something I do on my own time and does not represent the views of the Fed, blah blah blah legal stuff.) And with my main interest in information design—be it in the shape of clear charts, maps, diagrams, or wayfinding systems—I am fortunate that my day job focuses on data visualisation. Outside of work, I try to stay busy with personal design work. Away from the world of design, I enjoy cooking and reading and am interested in various subjects from history and geography to politics to science to the arts. And I allow all of them to influence my work.

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