The Hung Kings' Temple is a historical site located in Phu Tho Province, Vietnam. It is dedicated to the Hung Kings, the legendary founders of the Vietnamese nation, who are believed to have ruled around 2879 to 258 BC. The temple complex consists of several structures, including altars and pavilions, where annual festivals are held to honor these kings. Every year, the Hung Kings' Festival takes place in the third month of the lunar calendar, attracting thousands of visitors. This event celebrates the contributions of the Hung Kings to Vietnamese culture and history, emphasizing their role in unifying the nation and promoting agricultural practices.