Original: Marzahn-Hellersdorf borders to the Berlin boroughs of Lichtenberg in the west and Treptow-Köpenick in the south as well as to the Brandenburg municipalities of Ahrensfelde in the north and Hoppegarten and Neuenhagen in the east.
Simplified: It has borders with Lichtenberg in the west, Treptow-Köpenick in the south and the state of Brandenburg in the east and north.