While Tokyo is known for being a very lively city, Osaka is more on the laid back and relaxed side. It is also the second largest metropolitan area after Tokyo.
A few places that you shouldn’t miss are as follows;
Dotonbori - this is the counterpart of Shibuya when it comes to shopping. The area is always bright, with neon signs lighting up the area at night making it a place where you can enjoy active nightlife. People who enjoy good eats and niche stores will appreciate Dotonbori.
Umeda - home to Osaka’s most famous landmark, the Umeda Sky Building! featuring the breathtaking floating garden. Tourists who are more into luxury stores or likes the sleek, fast-paced, and professional style of business districts will feel at home in Umeda.
Osaka Bay - is home to shopping, dining facilities, observatories, Mt. Tempozan (Japan's smallest mountain, standing at about 4.5 meters above sea level) a Ferris wheel, The Osaka Aquarium, Kaiyukan, and Universal Studios Japan®.
Osaka is indeed one of the must go Cities of the world!