The Louvre Palace is a historic monument located in Paris, France. Originally built as a fortress in the late 12th century, it was transformed into a royal residence during the 16th century. Today, it is best known as the Louvre Museum, housing an extensive collection of art and artifacts, including the famous Mona Lisa. The palace features a blend of architectural styles, reflecting its long history. The iconic glass pyramid entrance, designed by I. M. Pei, was completed in 1989 and serves as a modern contrast to the classical buildings surrounding it. The Louvre attracts millions of visitors each year, making it one of the most visited museums in the world.