Occasionally you can find guided tours of the building advertised by their communication office and if you do I will recommend you the Art Tour. It is more focused on the art pieces that are hosted in different parts of the building. I took that tour once with my colleagues and I was pleased to discover some Romanian art pieces.
Enjoy the photos!
Me, next to a Romanian sculpture
Next to most of the art pieces you will find explanation in English and French
These are most of the art pieces I have seen in the Court of Justice
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