Kirsteen Pieterse's Canyon.

Kirsteen's sculpture reminds me of the toothpick arts we used to do when we were kids, only much larger and cooler.

From the website:

A deliberate attempt has been made to present the structures as models. They are made from the commonly used architectural model-making material FomeCore, and are scaled down to tabletop size. Consequently, they draw on the assumptions of architectural models – to help visualise and sell projects yet to be realised. The presentation of the sculptures in an immaculate and clean form supports such inferences, yet the structures have evidently already existed and are failed structures.

Link (via Gravestmor)