Visual Index of Hunyuan Sites (Site name and description)
Xuankongsi Temple Xuankongsi Temple (6th century)
A unique feat of architectural engineering.

Bibliography:

All images copyright 2002 by Professor Robert D. Fiala of Concordia University, Nebraska, USA

Fu Xinian et al. Chinese Architecture. Nancy S. Steinhardt, trans. and expanded on text
  Yale University Press, 2002.