These concrete tiles only show their pattern when they get wet. Solid Poetry by Frederik Molenschot.

The justice centre in Leoben, Austria, isn’t your average courthouse-prison. Modern architecture and design combined … damn, it’s a prison! Did you notice the signs on the ceiling?
by hohensinn architektur

The screen consists of concrete with embedded optical fibres, arranged as pixels, capable of transmitting natural as well as artificial light. The light-admission points are on the back of the screen where the fibres are positioned. The light, or the picture, will then be displayed in pixels on the front. The light source can be a projector emitting either pictures or film footage. In principle, the screen is capable of acting as a window since – owing to the combination of the screen concept’s light-absorption and optical cables – it has a capacity for transmitting natural light.

by Innovation Lab

But I still think that LiTraCon is even more awesome!

This is some other kind of graffiti. Moose cleans dirty walls to make his pieces!

The power of erosion captured and fossilized in concrete. A piece that resembles a slice of history, through a polished segment of solid stone that has lived and evolved for a million years.

by Petr Weigl

Another interesting project by Peter Marigold: make / shift. It’s actually a very simple shelving system, he even tried out different materials.