Mirrors are always interesting because they reproduce the world without changing anything, unless the mirror have some kind of deformation.

In this case the mirrors reproduce the world in front of them in three different ways:
1) Nature, that creates a continuous changing background, 2) the objects located directly on the mirror that are a static reproductions and 3) the visitors passing by who stays for a while playing with his/her own reflected image interacting with the other reflected objects.