That’s about as blue as a building can get.
The borough of Delfshaven, Rotterdam, asked Schildersbedrijf N&F Hijnen to come up with a plan for a block of derelict buildings, which will eventually be demolished. The agreement with the neighbourhood is that the block will remain blue as long as there isn't a new plan for the area.
This was once one of the most unseen blocks of houses in Rotterdam, and by applying a layer of only 2 micron of blue paint onto it, it became Rotterdam's most photographed one.
Link -via Dump Trumpet