Tomographic imaging aims to map the 3D electron density in a non-destructive manner. The method is relevant to study materials of almost all types including biological systems. State-of-the-art X-ray imaging instruments are used to create virtual representations of materials down to tens of nanometre spatial resolution. Perhaps the biggest asset of synchrotron imaging instruments is their excellent temporal resolution at this length scale [1]. The limits in the temporal domain are mainly set by the detector and the mechanics. For the spatial resolution the biggest concern is the radiation dose resulting from the interaction of X-ray radiation with the studied matter. I will give an overview of recent achievements in micro- and nano-scale tomographic imaging with emphasis on the specific capabilities of imaging beamlines in Europe.