A 19th-century architectural masterpiece, the Palais Garnier Opera House, built by Charles Garnier and opened in 1875, is the 13th opera house in Paris since the introduction of French opera by Louis XIV in 1669.
As you can see, it seems people like to congregate here on the steps even at night.

The previous image shows how ornate design of the building. It's really beautiful. I did not get
to see the inside, so I guess that means another trip to Paris!