Interesting to see that half of the complex is much better in appearance than the other. The work of restoration, perhaps?

Nice flying Alex.  

Remarkable footage Alex.    You can definitely see where the original fortress started and then the add-ons at a later date I'm sure.  Appears to have a bit of Roman design to it.  

Incredible depth of the city. Thanks for sharing this Alex.

Another beautiful video (again with a railroad, which looks brand new)

Great job.