Maastricht city centre with in the foreground the city wall from the 13th century, on the left the Monastery of the Sisters Under the Arches, in the centre of the picture the Vrijthof, the Henric van Veldekeplein, the St. John's Church and the Basilica of St. Servatius with the Double Chapel (Antiqua Capella, Kapittelhuis or Stiftskapel). .© 18 april 2019 Aerophoto-Schiphol Aerial Photography