Arco is a comune in Trentino-Alto Adige in northern Italy.
The town is faced on one side by sheer limestone cliffs jutting up like a wall protecting it and its ancient hilltop castle.
King Francis II of the Two Sicilies died here in 1894.
Wikipedia https://en.wikipedia.org/wiki/Arco,_Trentino
Coordinates 45°55'5.278" N 10°53'9.943" E