york. sir? no. reporter: i guess there are always a few exceptions. reporter: we eventually made our way to penn station. another hectic scene where the learning curve is also pretty steep. can i have a copy of one of the maps? it s pretty hard to hide your confusion in a place like this. but people who have mastered the system already did offer comfort. if somebody has a question and you look lost, you ll always find a person that can help them. reporter: all that may be well and good. but for this kid from suburban new jersey, i decided my favorite subway line is the c-a-b. new york is a sea of yellow cabs. thousands of them zooming and weaving their way through notoriously heavy traffic. do you drive a little crazy? sometimes. reporter: the fares can add up pretty quickly. but a funny driver makes the tab worth it.