From the Stone Age to the Metamaterial Age? A recent Cluster publication with PI Martin Wegener published in the IOP journal “Reports on Progress in Physics” summarizes the conceptual as well as experimental state-of-the-art of mechanical metamaterials, including different functional architectures, dimensions, and length scales, ranging from below one micrometer to tens of meters. The review addresses an approach that is based on creating artificial atoms with designed and tailored properties, allowing for desired behavior and functionalities of the artificial amorphous arrangements.