In brief
Historical Nara is read through various types of monuments. Temple, sanctuary and archaeological remains do not show the same thing.
Useful to know
Nara was the capital of Japan from 710 to 784. UNESCO includes in its heritage Buddhist temples, Shinto shrines and revealed remains of the great imperial palace. [1]
Different types of monuments require a different way of observation. A preserved building can show volume and interior space; archaeological terrain often gives other kinds of information about planning and position.
"Palace" as a historical function does not necessarily mean that a full palace interior is visible today. Do not fill the absent with details taken from another monument.
The period of stoicity is a general context, not a universal date for everything that is displayed in the modern city. Specifying the specific site helps to link the management history to real architectural traces.
Sources
For further detail and to check the information: