Amagerbro (also known as Sønderbro) is the district located immediately south-east of Christianshavn at northernmost Amager. The old city moats and their surrounding parks constitute a clear border between these districts. The main street is Amagerbrogade which after the harbour bridge Langebro, is an extension of H. C. Andersens Boulevard and has a number of various stores and shops as well as restaurants and pubs. Amagerbro was built up during the two first decades of the twentieth century and is the city's northernmost block built area with typically 4–7 floors. Further south follows the Sundbyøster and Sundbyvester districts.