Rainbow House

Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the second biggest prefectural city, third-most populous city proper in Japan, following the special wards of Tokyo and Yokohama. With an estimated population of 2.8 million as of October 1, 2025 and a population density of about 12,505 people per square kilometer, it is the largest component of the Keihanshin metropolitan area, the second-largest metropolitan area in Japan and the 10th-largest urban area in the world with more than 19 million inhabitants.

Nestled in the Kansai region of Japan, Osaka is a bustling city that's renowned for its delectable cuisine, majestic castles, and vibrant cityscape. Known as the "Kitchen of Japan," Osaka is a foodie paradise that's home to some of the most mouthwatering dishes in the country. From the savory okonomiyaki (Japanese pancake) to the crispy kushikatsu (deep-fried skewers), Osaka's food scene is a feast for the senses.

Aside from its culinary delights, Osaka is also steeped in history and culture. One of the city's most iconic landmarks is the Osaka Castle, a magnificent fortress that dates back to the 16th century. The castle's stunning architecture and picturesque gardens make it a must-visit attraction for history buffs and nature lovers alike.