Minato Mirai 21 in Yokohama is a bustling seaside urban area known as the "harbor of the future." It's got everything from skyscrapers like the Landmark Tower to amusement parks, hot spring baths, museums, and shopping centers. You can check out the awesome views from the Sky Garden observatory, ride roller coasters at Cosmo World, or relax at the Manyo Club spa. With its mix of entertainment, dining, and shopping options, Minato Mirai is a must-visit destination for anyone exploring Yokohama.