||The Canal du Midi and the Canal de la
Robine. Undertaken by Pierre-Paul Riquet in the 17th century, to link
the Atlantic to the Mediterranean, it crosses the Aude river from West to
East over a distance of more than 100km.
The Canal du Midi runs 240 km and is filled by a
complicated system of feeder canals and reservoirs. It includes surviving
examples of the earliest inventions related to hydraulic engineering and
associated construction works. Thanks to some 350 such works (bridges,
locks, aqueducts, overflow outlets), a number of which have never been
altered since their first construction and the towpath with 300 year old
trees, the Canal du Midi was included by UNESCO in December 1996 on its
World Heritage List.