What is worth preserving?

The perspective on the central question of what is worth preserving should have a significant part of the buildings that there historic structure. The landmarks around the buildings are able to explain and support the environment or community. The surrounding by Each of these edification been built in the past has a main purpose in our society. it does not matter how historically old or small, big the buildings are it insignificant these structures as they have a strong impact in the modern Architecture even if  people may disagree to keep them structurally standing.