List table of the properties and districts — listed on the California Historical Landmarks in Los Angeles County, Southern California.Note: Click the "Map of all coordinates" link to the right to view a Google map of all properties and districts with latitude and longitude coordinates in the table below.

The Mirror Building also called the Butterfield Overland Mail Company Los Angeles Building was a large brick building in Los Angeles built by Butterfield Overland Mail Company built in 1858. The Mirror Building was designated a California Historic Landmark (No.744) on July 5, 1960. The Mirror Building had business offices and housing space for traveling workers. There was a large stable in the back of the buildings for the horses, along with a large workshop to repair the stagecoaches. The first Butterfield Overland Mail stagecoach from St. Louis to arrive was on October 7, 1858. The Butterfield Overland Mail Company was founded by John Butterfield, who later founded American Express.