Kofun Period
Tomb Mounds (Keyhole-shaped Tomb Mounds),
Yamato Court

Many tomb mounds are located in the vicinity of the ancient road "Yamanobe no Michi." Among them are the tomb of Emperor Sujin, the legendary 10th sovereign in the traditional court, and the tomb of Emperor Keiko, the legendary 12th sovereign said to be the father of Prince Yamatotakeru. Emperor Sujin's tomb is a giant keyhole-shaped tomb mound with a total length of 240 m. Emperor Keiko's tomb is of the same shape and is 300 m long.
The area commands a fine view of "Yamatokunnaka" (in the Nara Basin) with Mt . Nijo in the distance, embracing Japan's oldest road on record, "Yamanobe no Michi."

Source: The Tenri municipal government