Lausanne's Old Town is a captivating blend of history and charm, with medieval architecture and cobbled streets that exude a timeless ambiance. At its heart stands the Notre-Dame Cathedral, a Gothic masterpiece revered as one of the finest in Switzerland. With origins dating back to the 12th century, it boasts a stunning 13th-century rose window and intricate stone carvings. Surrounding the cathedral are notable historical landmarks, including Maire Castle, constructed between 1397 and 1427, and the 17th-century town hall. The Ale Tower, erected in 1340, and the 12th-century bishop's castle tower in Ouchy are among the few surviving parts of the original city wall, once fortified with around 50 towers. Navigating Lausanne's steep hills and exploring its various districts is made easier by Switzerland's pioneering underground metro system. Fully automated and primarily subterranean, it offers a convenient way to travel through this picturesque city on Lake Geneva while enjoying its rich history and scenic beauty.