The Museum für Kommunikation Berlin (Museum of Communication) is a Berlin museum dedicated to communication and its history. Opened in 1872, it is the first postal museum in the world. Today, the museum of communication has several locations: in addition to Berlin, there are also locations in Frankfurt and Nuremberg. The museum shows the gradual development of today's information and communication society. In this sense, the museum itinerary shows the changed relationship we have with signs, codes and media and the consequent changes in the private sphere and in public life. The collection consists of different objects. In the so-called "Treasure Room" (Schatzkammer) there are various historical objects, including the "cosmic stamp", ie the stamp that traveled in space together with the first astronauts. Then there are the first telephones and the most famous postage stamps in the world: the blue and red Mauritius. In the skylight courtyard, three robots communicate and interact with visitors, while in the communication gallery, viewers are invited to question themselves on various issues, such as how communication has changed over the centuries, or how the media influence our communication. private.