Guanajuato is another great town in Mexico that is full of character. Guanajuato is located in a narrow valley and most ofthe streets are small and winding, which resulted in an intricate underground tunnel system used not only by cars but also the pedestrians. Guanajuato became famous for it's silver mining back in the day, and although some silver mines are still functioning today they are also open to tourists. If you speak Spanish, there are many people who worked at the mines perviously, and now can take you on an interesting tour of the mines.