Iconic buildings, both modern and old, are a defining characteristic of world cities. The stones cladding these buildings are major architectural elements, but the geological story behind these stones is mostly forgotten or overlooked. New geotourism products address this shortcoming: pamphlets, booklets, virtual tours and mobile applications that link historical and heritage information to the geology behind building stones or sites within an urban landscape. Examples from Australia, Europe and North America are presented. They provide an additional resource to traditional tourism and a tool for the urban tourist who wishes to hear the silent stories these rocks have to tell.