The controled anodic oxidation (anodization) of metals under specified conditions is today one of the most popular method for obtaining nanostructred oxide layers on the metal surfaces. Anodization, widely recognized as an easy way to synthesize nanoporous alumina and nanoporous or nanotubular titania have been recently employed to fabricate nanostructured oxides on the surface of other metals such as: Nb, Hf, W, V, Zr, Cr, Fe, Ni, Sn, etc. Such nanoporous oxide layers may be used directly as well as templates for obtaining different other nanostructures like nanowires made from other metals or polymers. Here we presents some examples of nanostructured layers with various morphologies formed on different metallic substrates by simple and cost effective electrochemical methods