I love this metro. The 12 is my favorite line. I think it's the smell that I like because it's an old line. It smells like oil grease and is never really busy. I guarantee you that 87 percent of the time you will be able to find a seat on this metro. There's a rat that lives in the middle of the track ( I forgot his name) but it always amazes me how he knows exactly when the metro is coming and then he jumps back into his hole and waits for it to pass by. This metro isn't as glamorous as the 1 or Louvre- rivoli but It can take you to Pigalle and also to the left bank or montparnasse, saint Lazare train stations. This particular metro brings you right on to rue chateaudun and is a small walk to Trinity and saint George. read more