
Art and information, cool shot.
Expanding thoughts on the glass for the curtain wall.
The glass is "super clear" but any super smooth surface, like glass, well act like a mirror at anything other than 90 degrees of refraction. ( I forgot much of my HS physics, but the reflection is exponential to the angle of reflection, or something like that.)
Unless it is back lit or you are viewing it at zero degrees of reflection the glass of the curtain wall well mirror, or reflect, the light that hits it.