Why is Toulouse known as La Ville Rose?

Toulouse is known as La Ville Rose, or "The Pink City," due to the distinctive pink terracotta bricks used in many of its buildings, which give the city a warm, rosy hue, especially during sunset. This architectural style is prevalent in historical structures, contributing to the city's charm and uniqueness. The nickname also reflects the vibrant cultural and artistic heritage of Toulouse, making it a popular destination in southwestern France.