Colonnaded pathway where the road projects out from the hillside, with the vaulting forming a retaining wall which curves over to support the road, and transmits the load onto sloping columns.
photo by Dennis N (=Nehrener); Wikipedia
Colonnaded pathway where the road projects out from the hillside, with the vaulting forming a retaining wall which curves over to support the road, and transmits the load onto sloping columns.
photo by Dennis N (=Nehrener); Wikipedia