In two roadside pits, a couple of metres below the road surface on the north and south side of the crossroads here, are the remains of the once magnificent Dōng’ān Mén – the east gate of the Imperial City – as well as parts of the imperial city wall and parts of a bridge that used to cross the city canal (now a road).
The ruins are little more than small piles of bricks, but they are brought to life by a carved map fastened to one wall, showing what the area once looked like. Before being razed, the gate, Dōng’ān Mén, was a single-eaved, seven-bay-wide building with a hip-and-gable roof capped with yellow tiles. All that's left of it now are two layers of 18 bricks.
