The Chicago Architecture Foundation will kick off a new tour soon featuring influential women in Chicago's history. The "Women of Influence Tour" will meet at Graceland Cemetery on select Saturday mornings starting September 6, and for the meager price of $10 (or free, if you're a CAF member) you'll learn about women who fought for civil rights, conducted the Underground Railroad and broke up the plot to kill President Abraham Lincoln...and see some pretty cool tombstones.