"Haussmannian" refers to the style of urban planning and architecture associated with Georges-Eugène Haussmann, who was commissioned by Napoleon III in the mid-19th century to modernize Paris. This transformation involved wide boulevards, uniform building heights, and the creation of parks, which aimed to improve traffic flow, sanitation, and aesthetics in the city. The Haussmannian style is characterized by its grand, symmetrical facades, typically made of limestone, and features such as wrought-iron balconies and mansard roofs. This architectural approach not only reshaped Paris but also influenced urban design in other cities around the world, promoting a blend of functionality and beauty.