"I thought of that corner in Monaco which I had passed a day or two ago"
Monaco-Ville
GNU Free Documentation LicenseMonaco-Ville - Credit: Arnaud 25

The Principality of Monaco is the second smallest country in the world (the smallest being the Vatican City). Its traditional quartiers (districts) are called Monaco-Ville (Le Rocher); Monte Carlo; La Condamine and Fontvieille.

Monaco-Ville, which is located on a rocky headland overlooking the Mediterranean, retains many of the features of a medieval village and may well have been the site of  'that corner in Monaco' where 'a crooked house leant to a cobbled square'.

 

Small street in Monaco-Ville
Public DomainSmall street in Monaco-Ville - Credit: Rundvald