Olga Margolina, an atypical representative of the “silver age”, the author of many books, including about the great hydroelectric power stations of the Soviet Union that she built, about her fellow hydraulic engineers, about her beloved St. Petersburg, about her travels and adventures in dozens of countries around the world, introduces readers of a new book with memorable days of biography. Each person spends their birthday in their own way, some retire and reflect on their lives, others eagerly await congratulations over the phone from friends and family, and others always celebrate this day with their family. The author of the book tried to spend this day, if possible, in an unusual place or in an unusual way. The diaries she has kept throughout her life have helped her collect these special “red” days and arrange them in chronological order over the decades. All stories draw on hard-to-find information about “atypical” places, which makes them interesting, and the use of dialogue between participants in “birthdays” enlivens the text, filling it with humor and lyricism. The reader has the opportunity to follow the change (or stability) of the author’s character against the backdrop of a changing era. Living conditions in the 21st century allowed the author, a clear optimist, to expand the horizons of what he saw and understand that the world is beautiful everywhere, our task is to preserve it.