The great loop of China - April 2018 - Page 7 - 815

Evidence a hole was here, you can descend into the now fully mall lined hole, and go further down under the grand canal to the subway station.

Camera Details: FUJIFILM, X70
Settings: 1/120 at f/5.6, ISO 400, 19 mm
Date: 04 May 2018 Time: 19:13:46