The backbone of Lódź, Ulica Piotrkowska, is 4km long and lined by beautiful bourgeois residences; its central part is closed to traffic. Its 19C architecture is inspired by the neo-Gothic, neo-Renaissance, neo-Baroque and Art Nouveau styles, which apply to factories and industrial residences. The site of never-ending animation, each of these buildings is more interesting than the next. Don't miss the Textile Museum (no 282).