<p xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" class="first" dir="auto" id="d9998e157">In the early 2000s, it was anticipated that low-dimensional systems would exhibit unique polar structures like vortices or skyrmions, depending on boundary conditions. Some variations of these structures have been seen in experiments with epitaxially strained thin film models. However, fully understanding and categorizing these structures in ferroelectric nanostructures has been challenging due to the need for atomic-scale, three-dimensional polarization mapping. We present here the discovery of such structures in BaTiO3 nanoparticles using atomic electron tomography. Our findings reveal distinct topological patterns, including size-dependent transitions from single to multiple vortices, aligning with theoretical expectations. This discovery, independent of strain, expands research possibilities and offers potential for contact-free switchable toroidal moments in practical applications [ <a class="xref-link" href="#r1">1</a>].