Grounds of Senso-Ji, shrine of Kume no Heinai-do
Kume no Heinai was a 17th Century samurai kenjutsu (sword) master. Legend has it he was appalled at the number of lives he had taken, so joined the Senso-Ji temple. Shortly before he died, he instructed his followers to build a stone image of himself which was to be buried and thereafter trodden upon by the people who walked past, to continue his atonement during his afterlife.