A feng shui barrier shielding the Forbidden City from evil spirits (or dust storms), Jǐngshān Park was formed from the earth excavated to create the palace moat. Come here for classic panoramas over the Forbidden City's russet roofing to the south. On the eastern side of the park a locust tree stands in the place where the last of the Ming emperors, Chongzhen, hanged himself as rebels swarmed at the city walls.