Millau is a town in the Aveyron department of southern France, known for its stunning natural scenery and rich history. It is situated in the Tarn Valley and is surrounded by the Grands Causses Regional Natural Park, making it a popular destination for outdoor activities like hiking and rock climbing. One of Millau's most famous landmarks is the Millau Viaduct, which is the tallest bridge in the world. Completed in 2004, this engineering marvel spans the Tarn River and is a significant achievement in modern architecture, attracting tourists and engineers alike.