Nuclei with equal number of protons and neutrons have many interesting properties connected with high probability of alpha‐particle correlations. However, no such nuclei heavier than 100Sn were identified until now. Meanwhile, they can demonstrate some new unusual features, e.g. the existing of alpha‐particle skin, the appearance of a new domain of cluster radioactivity and the most aspiring one, alpha‐particle Bose condensate. Current situation in the field and possible experimental approaches are discussed.