As we descend beneath our modern day cities, we are met with ancient and hidden secrets. Journey with us back through history and rediscover cities of the underworld.
Era sui canali:
Le città segrete
Cities of the Underworld (2007)
documentario, storico | Stati Uniti
Regia: Emre Sahin
Immaculate 
I 3 dell'Operazione Drago 
Passaggio a Nord-Ovest 
