The Louvre has dominated central Paris since the late 12th century, originally built as a fortress on the western edge of the city to protect it from threats. Over time, the dark fortress was transformed into luxurious palaces as French kings like François I and Louis XIV modernized and expanded it through successive architectural changes. The document explores the history of the Louvre building from its origins as a medieval fortress under King Philippe Auguste to its current use as one of the world's largest art museums.