The Xiannong Altar is the highest-level, largest-scale and best-preserved place for worshiping the God of Agriculture in ancient China. It and the Temple of Heaven are arranged on both sides of Beijing's central axis and are an indispensable and important part of the symmetrical pattern of Beijing.

Xue Jian, director of the Beijing Museum of Ancient Architecture, recently accepted an exclusive interview with China News Service's "East-West Question" Xue Jian: How can the "three-quarters of an acre" on the central axis tell the story of "agricultural China"?