Explore the SoHo-Cast Iron Historic District with this walking tour app and learn about the largest concentration of iron-front buildings in the world. A Walking Tour of Cast Iron Architecture in SoHo guides you through the past and present using high-quality photos curated from sources such as the Museum of the City of New York, the New York Public Library, and the Library of Congress. Descriptive text for all 50 (fifty) stops on the tour highlights the architectural and historical gems in the Historic District. A Walking Tour of Cast Iron Architecture in SoHo will open your eyes to public art in a way you've never experienced before. Tour guides you through one of New York City's most famous neighborhoods, and provides a GPS enabled map.