Twin-jet structure of 3C 452 from kiloparsec to sub-parsec scales. The top image was obtained from VLA data at 1.4 GHz (Leahy et al. 1996). The following maps show the VLBI structure at different frequencies (4.9 GHz, 8.4 GHz, 15.4 GHz, 23.6 GHz, 43.2 GHz) based on the analyzed data of our project code BM516B presented in Sect. 2. Images were produced using natural weighting. The maps have been aligned to the central brightest feature. The complete series of images considered in the article is presented in the Appendix A.