Taira no Masakado's tomb

Taira no Masakado is one of Japan’s most notorious onryo (vengeful spirits). Masakado’s head is said to have flown around the country terrorising citizens for centuries, his undying wrath causing all manner of accidents, deaths, natural disasters and calamities. He was eventually granted god status to appease his belligerent spirit; his severed head has a resting place at its current location a stone’s throw from Otemachi Station, though whether his noggin is truly there is up for debate.