This web site features a digitally mastered, high resolution interactive reproduction of Giambattista Nolli's 1748 map of Rome, which records the streets, squares and public urban spaces of the city, but also renders hundreds of building interiors by way of detailed plans. The site's map engine not only incorporates pan and zoom functions, but layers can be added to highlight particular features, such as gardens or city walls. Auxiliary texts discuss the history, context and influence of the map.