If you have seen Doomsday in a City in a dream: You should not leave room for mistakes, You can think about your own personal affairs. Seeing the doomsday in a city in a dream means that the person who sees the dream will live a good life, fulfill the orders of religion and die as a Muslim, and the life in the hereafter will be good. It indicates that a person has a very acceptable life in the sight of Allah and that he will get rid of his sins by repenting.
It shows that a person has very good deeds and will be appreciated for his good deeds and living as a devout Muslim. The dream, which indicates that a person has a very acceptable life in the sight of Allah and is purified from his sins, also indicates that no one will be harmed by any evil.