This is a picture of the scoreboard early in the game, showing the coins marking the size of the largest city and longest road at the moment.
It is worth mentioning here that the Scoreboard only goes up to 50 points. The rules that come with the original game tell you that when you round the scoreboard, you should lay your meeple down for your next trip around the board, to keep track of the fact that you have lapped the board once.
In practice this doens't work very well. Also, if you have a lot of expansion packs like we do, it is not uncommon to score between 450 and 500 points, since there are many more opportunities for scoring with a larger tile base (especially counting the fact that the Inns and Cathedrals expansion contains tiles that can increase the value of a city by 50%).
Fortunately, the Inns and Cathedrals expansion also comes with scoring tiles; tiles that display "50" on one side and "100" on the other, which drastically help when it comes time to score. Without them, you're more or less resigned to keeping score on paper or making your own scoring marker (say, give everyone a penny every time they lap the scoreboard).