The Paris Métro is a fabled institution, and rightly so. Its 304 stations (32 more than the London Tube) are bright and clean. The trains, some old, some new, arrive on time and get you where you want to go with a minimum of fuss. My one serious criticism, apart from the inevitable overcrowding during peak hours, is that there are too many stairs and not enough escalators.

But — and I shouldn’t be telling you this — the buses are even better. For just €1.90 (about £1.60), a bus ride will give you a real feel for the city and a chance to meet its inhabitants at close quarters as they pursue their everyday lives.

My favourite is the number 95, which winds its way from the Porte de Montmartre in the north to the Porte de Vanves in the south, just inside the Périphérique, where le vieux Paris gives way to the anonymity of the banlieues.