We live in a quantum mechanical world. All matter is built from particles that obey quantum mechanical laws, ranging from quarks and nucleons, to electrons, to atoms and molecules. These building blocks of matter are tiny, and it is often said that quantum mechanics is only important for very small objects. But this is only partly true, as many macroscopic forms of matter are intrinsically quantum, ranging from metals to neutron stars and beyond. This talk will explore the fascinating world of quantum matter.