Lombard Street Mirror
As you get to the top of Lombard Street mirrors like the one in this picture are used to help you tell if any cars are going to cross Lombard Street. Because Lombard Street is so steep you cannot tell if you'll meet cross traffic when you reach the top of the block. In some cases cars do not have to stop when crossing Lombard Street so it is very important to use the Lombard Street mirrors to stay safe and accident free.
