Osaka, the bustling hub of the Kansai region, is indeed a large port city known for its modern architecture, vibrant nightlife, and hearty street food. The city's history as a merchant town is still evident in its lively markets and commercial areas. Osaka also offers a rich cultural experience, with historical landmarks such as Osaka Castle, which plays a significant role in Japan's storied past, and the Sumiyoshi Taisha Shrine, one of the country's oldest Shinto shrines.