The “Enfilades of main squares” walking tour.  St. Petersburg has become one of the most beautiful cities of the world within three centuries. The wonderful architectural ensembles, numerous building artworks, landscape constructions, bridges, granite quays, outstanding engineering structures, monuments and sculpture artworks have gained their fame by rights. The wide opened imposing Neva views as well as grand main squares - the Field of Mars, Palace square, straight and wide avenues – Nevsky Prospekt, Moskovsky Prospekt, Prospekt Stachek and many others are typical for St. Petersburg. And with it one can meet more unpretentious by dimensions but still nice squares, public gardens, streets, canals quays,  such as Ostrovskogo square, Russia street, Malaya Sadovaya street, Manezhnaya square, Arts square etc.