All historical locations have their own stories. All historical locations have their start points, something that specifically turned them into a historically important building (for example the cathedrals were all just meant to be places of worship. There had been no anticipation that Salisbury Cathedral would become important as one of the homes of one of the surviving copies of the Magna Carta just to name one example).
So what locations in your fictional world are historically important and why? Does everyone honour this importance? How are these locations treated? Is there such a thing as archaeology in your fictional world? Is there a tourist industry based on important locations?
Who writes the history of your world (within the fictional setting itself. My Eileen writes her version of historical events in the Fairy Kingdom but this is not popular with the government or the Fairy Queen. Eileen dares to criticize and, as with other aspects of her life, she is not subtle about this!).
Can time/history be manipulated within your fictional world? Who gets to do this and can it be challenged? What is the true version of history in your world?