SEOUL vs OSAKA

Gyeongbok palace - Main Palace

Osaka Palace

Seoul and Osaka have many similarities. First they were both capitals in the past. Seoul is still capital of Korea. Also they are very crowded. Seoul's population density is 17289 per km, and Osaka's is 11898 per km. In addition, they have palaces and rivers. Osaka is famous for its landmark, it is called "Osaka Place". It was built in 500 years ago, from the leaders commend. After complete the palace, Osaka became one of the important city in Japan again. Seoul has many palaces, bulit in Chosun dynasty, like Gyeongbokgung(main palace), Changgyeonggung and Deoksugung. Both cities are important for the history and they have many cultural assets. Also Seoul has its famous Han River, and Osaka is famous for Dotonbori River.  

Dotonbori Street

Chenggae stream

I think Seoul and Osaka's differenties are mainly from their environmental background. Seoul is surrounded from mountains like Mt.Bukhan, Mt.Gwanak and Mt.Dobong. In the other hand, Osaka is called for "City of Water"or "City of bridge". Osaka is mainly for water so there are so many bridges to cross the river. There are 840 bridges in Osaka.
And Seoul is a Megalropolis, it hosted 88 Olympic and became an international city, but Osaka is mainly for industry as well. So many Korean live Osaka. Because of the industry Osaka became a major traffic point. Osaka has international airport, Kansai airport, and many railway station like Shinkansen. In addition, Osaka has 2 major food, Takoyaki and Okonomiyaki. They both mainly made by octopus. Seoul is famous for food alley like Shindangdong Tteokdokki, and Shillimdong Sundae.
Two cities are close it take just 3 hours and we have ship from Busan to Osaka. I hope they will connect more.