Molecular self-assembly strategies involve the formation of nanometer scale objects and materials in the absence of significant external control. One increasingly popular self-assembly approach makes use of the unique properties of deoxyribonucleic acid (DNA) including its diminutive size and high capacity for information storage. For many applications, DNA stands alone as the top choice for the programmable construction of supramolecular materials due to its specific and well-understood base-pairing interactions. In this review, we will discuss recent advances in the fabrication of materials via DNA based self-assembly.