Oh Paris, once more you have rewarded this humble traveller with gifts and treasures far greater than i could have ever expected. Adventures, memories, quality food and the unstoppable burning desire to return. Sadly, as with all trips, they eventually have to come to a close. But before i bid my final farewell, returning to London from the station i had climbed not 24 hours ago. Paris had one last gift to give. A small kiss goodbye known as the Maillot Loop.

Originally functioning as the terminus for line one, the Maillot loop allowed trains to turn around and venture back along the line. This continued to be the case until 1937 when Line 1 was extended and the loops function was no longer required. While the loop isn't technically abandoned, the platforms on the Maillot Loop are inaccessible to passengers, with one now serving as workshop for repairing and testing trains.

If you want more then this brief skim of history then your in the wrong place. As the majority of the information here is from his site i suggest forward your interweb browsers here.

Au revoir Paris, until next we meet!