What are the challenges faced by architectural historians in gaining access to historical buildings and archaeological sites? Wars? Pandemics? Political conflicts? Or simply high costs of travelling?

When physical presence in a historical site is not feasible, what are the alternative methods enabling us to obtain information on what we are studying?  

This talk looks at the satellite image of Shahrasb and describes some of the architectural features of the residential compound which can be observed from a high altitude.

Satellite image of Shahrasb. Google Earth, Image © 2020 Maxar Technologies. Imagery date: 5/3/2011.