The Atlas begins with ICU’s large-scale structure. Select one area to see what it contains, then reveal more only when useful.
∞
What are the five areas, and what belongs in each one?
Next layer
What this area contains
View this layer as
About the 61-part permanent structure
The deeper Atlas contains 61 parts of ICU’s permanent public structure. Those records help keep naming and relationships consistent. They are optional reference material, not the first thing a visitor must understand.