Boulevards of the Marshals

The Boulevards of the Marshals (French: Boulevards des Maréchaux, pronounced [bulvaʁ de maʁeʃo]) are a series of traffic arteries that together encircle the city of Paris, France, just inside its city limits. Development of the Boulevards began in the 1860s under Napoleon III who named nineteen of them after a Marshal who served under his uncle, Napoleon I. Never officially designated as a thoroughfare, the name came into gradual use during the 20th century as the work was completed and the various segments came to be perceived as a whole.

Source: Wikipedia — Boulevards of the Marshals (CC BY-SA 4.0)