| Arg Bala castle | |
|---|---|
قلعه ارگ بالا | |
| General information | |
| Type | Castle |
| Location | Bojnord County, |
Arg Bala castle (Persian: قلعه ارگ بالا) is a historical castle located in Bojnord County in North Khorasan Province, The longevity of this fortress dates back to the Parthian Empire.[1][2]