Walks in Napoli

3 walks in Napoli, Italy. Follow the map, read a short story at each stop, and answer the question.

• Naples: Royal Naples and the VomeroA wager nobody won, a charm walled into a castle's foundations, a crocodile in the dungeon and the oldest working opera house in Europe.4.2 km · 240 min
• Naples: The Historic CentreA Greek wall in the middle of a square, an alchemist prince, a veiled Christ, and blood that liquefies several times a year — or doesn't.2.5 km · 210 min
• Naples: the Sanità, the catacombs and the skullsThe quarter a king bridged over so he would not have to look at it, a staircase like falcon's wings, and a cavern where Neapolitan women adopted forty thousand strangers' skulls.3.1 km · 210 min