The Xumi Pagoda or Sumeru Pagoda, also known as Summer Pagoda is a Chinese pagoda of the Buddhist Kaiyuan Monastery west of Zhengding, Hebei province, China. This square-base stone and brick pagoda was built in the year 636 AD during the reign of Emperor Taizong of the Tang dynasty (618–907). It stands at a height of 48 m (157 ft) and has been well preserved since its initial construction. The monastery that once surrounded the pagoda, however, has largely been destroyed, with the exception of a few structures.