"the ancient citadel"

Bala Hissar, 1879
Public DomainBala Hissar, 1879 - Credit: John Burke
Bala Hissar means "high fortress".  It was constructed in the 5th century AD, and became the seat of power for Kabul's rulers for much of the subsequent period.  From 1839, the British Army used it as a barracks, until forced to retreat.  It was severely damaged during the second Anglo-Afghan War when a British armoury exploded within its walls.