Located north of JR Takaida Station, this park preserves and displays the Takaida Yokoana Group, a national historic site. Takaida Yokoana are ancient tombs built by digging caves into tuff bedrock. They were built between the mid-6th century and the early 7th century, and there are thought to be more than 200 of them in total. In the Taisho era, carved murals of people, birds, horses, and other figures were discovered on the walls of the caves, which made them famous. In recent years, during a survey for the park's development, which began in 1989, the Takaidayama Kofun was discovered, and an ancient iron, a "hinoshi," a mirror, a helmet, and armor were unearthed. This tumulus is estimated to have been built around the end of the 5th century. Walking along the park's promenade, you can see the Yokoana, the Takaidayama Kofun with its transparent roof, and replicas of excavated items. The park also has a city history museum and a rose garden.