The world's largest building implosion to date occurred 30 October 1994 at the Sears complex in the Northeast section of Philadelphia, a site which is incidentally mere blocks from the origin point of Quondam - A Virtual Museum of Architecture.
051030a plan of Center City Phila. mirror copied along the axis of Market St. 2093i15
051030b 051030a scale manipulated 2093i16
051030c 051030a mirror copied along the axis of Broad St. 2093i17
17103001 Steven Holl/Rüssli Architekten MSF Operational Center Geneva
18103001 Apolinario Soares Urban Zoo Park Lisbon