Milan is a well-known city full of interesting places, but there are some lesser-known places that are still worth a visit. First stop: the railing houses. Buildings built in the early twentieth century and designed for the working class. These are buildings divided into many apartments and united by the 'railing', that is a shared balcony that runs along the entire facade of the building. It is a typical example of social housing that represented a shared past among the inhabitants. One of the many examples is found in the so-called 'artists' quarter' in the Alzaia Naviglio Grande area, or in the courtyard of the Calonga. Second stop: the Arcobaleno district. This is Via Abramo Lincoln, characterized by a series of colorful houses that are very reminiscent of Notting Hill. Born as a project for a 'garden district' with houses and lots of greenery, it had to be larger but the project stopped due to the wars. Third stop: the Art Nouveau buildings. This type of architecture is scattered around the city. Some examples are Casa Galimberti, decorated with painted majolica, or Palazzo Castiglioni, and finally Casa Berri-Mergalli, which enchants with a mix of gothic and liberty style. Fourth stop: San Bernardino alle Osso. A dark but certainly unusual looking church with the ossuary that comes with walls entirely covered with human bones. Fifth stage: the village of Gorla. A district located on the Naviglio alla Martesana called 'the little Paris of Milan'. It was a much loved place because it represented a glimpse of the countryside in 19th century Milan.