St. Stephen's Cathedral in Passau, known locally as "Passau Dom," crowns the highest point of the city's Old Town. This magnificent baroque masterpiece showcases both architectural splendor and musical innovation. After a devastating fire in 1662 destroyed most of the structure except its late Gothic eastern facade, Italian architect Carlo Lurago reconstructed the cathedral between 1668-1693. The interior features exquisite white stucco work by Giovanni Battista Carlone and vibrant ceiling frescoes by Carpoforo Tencalla, creating a bright, luminous atmosphere that inspires awe. The cathedral houses the world's largest church organ system, comprising 17,974 pipes, 233 stops, and four carillons that can be played independently or simultaneously from the main keyboard—offering visitors an unparalleled acoustic experience. Regular organ concerts are held Monday through Saturday from April to October, making this a premier cultural destination in Bavaria.

Aix-en-Provence, known for its stunning architecture and vibrant markets, is a picturesque city in the south of France. Famous for its thermal springs and as the birthplace of the painter Paul Cézanne, Aix offers visitors a blend of history, art, and Mediterranean charm. The city's lively streets are lined with cafes, boutiques, and fountains, creating a delightful atmosphere for exploration.