The Louvre is one of the world's largest and most famous art museums, located in Paris, France. Originally built as a fortress in the late 12th century, it became a royal palace before being transformed into a public museum in 1793. The museum houses an extensive collection of art and historical artifacts, including the iconic Mona Lisa and the Venus de Milo. With over 35,000 works of art displayed across 652,000 square feet, the Louvre attracts millions of visitors each year. Its glass pyramid entrance, designed by architect I. M. Pei, is a modern architectural landmark that contrasts with the museum's historic buildings.