The first question we pose when studying any condensed matter system is the question concerning the internal structure: what are the relevant building blocks and how are they arranged? The second question concerns the microscopic dynamics: how do these building blocks move and what are their internal degrees of freedom? These tasks can be accomplished by neutron and synchrotron x-ray scattering. Traditionally, solving structure is the duty of powder diffraction (X-ray and neutron).  Especially, neutron scattering is a unique tool to solve magnetic structures and determine magnetic excitations and fluctuations, rendering it as a powerful modern scattering technique. During this symposium, I will report on our recent studies on RECrO₃ single crystals utilizing modern diffraction techniques.