Some cities have street names that help people to remember and recognize different parts of the city. In Barcelona, the street names have a special history. When Barcelona was first settled as a city, some of the streets were named after famous people who had lived in the city, like a poet or a famous teacher. Over time, more streets were added and they were given the names of wealthy families who had been important in the city's history. Now, Barcelona's street names can remind us of the important people and families that helped to build the city.