Osaka International Airport is closer to the Osaka Castle, one of the top famous attractions in Japan. Form Osaka airport, it will take you around 56 minutes using the Hankyu Railway lines for $3-$4, while taxi will get you there in 17 minutes for about $60-$75. If going from Kansai airport, you will spend 1h 25 minutes using the Japan Railways (JR) line for about $9-$12 while the airport taxi can get you there in 45 minutes for about $150-$190. Other must see places in Osaka include Universal Studios Japan, Dōtonbori, Osaka Aquarium Kaiyukan, Tsutenkaku, Osaka Castle Park, Shitennoji, Tempozan Ferris Wheel, Umeda Sky Building, Nakanoshima, Expo Commemoration Park, Abeno Harukas, Sumiyoshi-taisha, Nakanoshima Park, Kuromon Ichiba, Midōsuji, Osaka Tenmangū, Osaka Museum of Housing and Living, Mount Tenpō, Nishinomaru Garden, Kema Sakuranomiya Park, Osaka Prefectural Government Sakishima Building, Osaka Museum of History, The National Museum of Art, Osaka, Tower of the Sun, Kids Plaza Osaka, Museum of Oriental Ceramics, Osaka, and many others.