Japan's largest burial mound Daisen Kofun, is said to be Emperor Nintoku's grave and is the largest grave in the world by area. From above, the grave looks like a giant, green keyhole and visitors may see it from a viewing platform near Mozu Station, a stone's throw from the grave. The Sakai City Museum lies opposite the street, filled with information about the kofun's history.
Hamadera Park and Daisen Park offer incredible views of cherry blossoms and autumnal colours respectively, making them worth the visit any time of the year. To overlook the city, Sakai City Hall Observatory Flour - the tallest building in Sakai - has a 360-degree view that stretches to Osaka and beyond.