challenge: Where is Pianezza located?
  
  A. In the Italian region of Tuscany, about 12 km northwest of Florence
  B. In the Italian region of Lombardy, about 12 km northwest of Milan
  C. In the Italian region of Piedmont, about 12 km northwest of Turin
  D. In the Italian region of Veneto, about 12 km northwest of Venice
  Answer: 