Sort:  

Yes, The interference pattern shows how the photon travels. Once it hits the wall all the energy of the photon is released at one district point.

And it's even strange: The interference pattern will also appear when you fire whole atoms. Or molecules. They fired C60 (https://en.wikipedia.org/wiki/Fullerene) molecules and they showed the interference pattern pattern as well.

Light is not the only one who behaves that way.

Basically as @puddles said, "Light is weird."