A brilliant idea for construction sites: art, history, education and fun in the Palais Royale Garden.

Totally unexpecting it, I left lunch near the Places des Victoires and headed to the #1 Subway via the Gardens of the Palais Royale.  Suddenly I realized the usual plywood surrounding the site was different.  On the North side of the passage between the two sites was a wall of historical explanations and photos of architecture from Roman forward.

Now granted the South side had a panel on the renovation of Daniel Buren columns, which apparently like the Lincoln Center pool have been a problem sibce their inception.
 

And then one had the usual look-see at what was happening to that side:

But that panel on the North side was a great idea, all construction sites take note.