A major cul­tur­al and sci­en­tif­ic cen­ter where you can see leg­endary exhib­it ships (the research ves­sel Vityaz, the sub­ma­rine B‑413, the space com­mu­ni­ca­tions ves­sel Kos­mon­avt Vik­tor Pat­sayev, and oth­ers), learn about the his­to­ry of nav­i­ga­tion, oceanog­ra­phy, and marine flo­ra and fau­na, vis­it an aquar­i­um, exhibits on ocean geol­o­gy, and a col­lec­tion of rare arti­facts, and stroll along the Peter the Great Embank­ment, which has been trans­formed into a ver­i­ta­ble open-air muse­um.