Hiroshima Peace Memorial Park is a memorial park in the center of Hiroshima, Japan. It is dedicated to the legacy of Hiroshima as the first city in the world to suffer a nuclear attack, and to the memories of the bomb's direct and indirect victims (of whom there may have been as many as 140,000). The location of Hiroshima Peace Memorial Park was once the city’s busiest downtown commercial and residential district. The park was built on open field that was created by the explosion.