I was born in the city of Severomorsk.¹ Current population 50,000+. I'm living in another city now. And I can't go the place of my birth unless I prepare the papers two weeks before the visit.² Forget about the spontaneous visits to my friends living there.

¹ https://en.wikipedia.org/wiki/Severomorsk

² My friend helped me with the papers. I don't remember exactly, but simply saying "I want to visit my friends" is not enough. It's more complicated than that.