Lyon
View of Lyon, ancient Lugdunum, from near the Header Tank Aqueduct of Gier. This was the beginning of an inverted siphon that brought water to the city of Lugdunum—crossing the Yzeron Valley in this picture.
View of Lyon, ancient Lugdunum, from near the Header Tank Aqueduct of Gier. This was the beginning of an inverted siphon that brought water to the city of Lugdunum—crossing the Yzeron Valley in this picture.