The Baroque style that originated in Rome, Italy in the 16th-18th centuries spread throughout Europe. French interest in the arts under Louis XIV helped introduce Baroque ideas to other parts of Europe. Examples of Baroque architecture include the Trevi Fountain in Rome and Augustusburg Palace in Cologne, demonstrating the lasting influence of Baroque style across cities in Europe such as Rome where many landmarks like St. Peter's Basilica are in the Baroque style.