La solution au casse-tête

So, here is the answer to the puzzling photo of yesterday. 

The afternoon sun was shining on the frieze of 

the building on the opposite site of the Cour Napoleon (Louvre) which is

the Pavilion Richelieu. The image of the 

frieze is seen as a reflection off the interior back wall

  (yes, through the round opening). 

It was a special moment.

Cour Napoleon

Musée du Louvre

75001, Paris