Took me a moment to figure out what I was looking at here.
It’s easier to see up close, though it doesn’t look nearly as pretty without the illumination from within.
As described by Trendland:
The construction of this awesome Rotterdam house a.k.a Black Pearl has degenerated in an architectonic spectacle, in which is experimented with time and space. The 100 years old facade has been entirely reworked by Zecc Architects & Studio Rolf.fr. Painted in a shiny black oil, the brickwork, the window frames and the glass of the existing facade is painted black. Because of this black layer you can say a shade aroused on the old façade. This shade has been taken as a basis layer in which is modern steel frames have been placed to form new windows.
The interior is pretty cool, too, and can be seen at the Trendland post.
Just fantastic, no? I really get a kick out of this sort of thing.