|  Le canal du Midi, near Toulouse (photo from slide; circa 1987-1997).
 |  Le canal du Midi, near Toulouse (photo from slide; circa 1987-1997).
 |  The Canal du Midi, liaison between the Meditarranean and the Atlantic.
 |  Pierre-Paul Riquet and his letter to Colbert, encouraging him to support the canal's construction.
 | 
|  Le canal du Midi, Michel et Andia (photo from slide; circa 1987-1997).
 |  Portrait of Pierre-Paul Riquet, le Baron de Bonrepos, who supervised the construction.
 |  Painting of people working on the Canal's construction (17th century).
 |  Reproduction of the original plan of the Saint-Ferréol dam, necessary to feed the Canal with water.
 | 
|  House (now the museum) at Saint-Ferréol dam, shown in the previous picture (left side).
 |  Le canal du Midi, near Toulouse (photo from slide; circa 1987-1997).
 |  Le canal du Midi, near Michel's house (photo from slide; circa 1987-1997).
 |  Le canal du Midi, near Toulouse (photo from slide; circa 1987-1997).
 | 
|  The Négra lock (écluse); particularity: the chappel on the left.
 |  The Négra lock (écluse); near Toulouse.
 |  The lock (écluse) Négra's house; near Toulouse.
 |  The water 'division' (for easy reading, click on 'original' below).
 | 
|  Explanation (click on 'original', below for easy reading).
 |  Castelnaudary's locks; there are 3 in sequence.
 |  Castelnaudary's locks.
 |  At Castelnaudary: a desactivated hydro turbine.
 | 
|  Castelnaudary's locks.
 |  Michel Lajoie-Mazenc (left) and Jean Hector; they live in Toulouse area.
 |  Castelnaudary's locks.
 |  Castelnaudary.
 |