Responding to a Threat
July 1, 2020Take the Cologne Archives in Germany, for example. The archives building was constructed in 1971 to hold myriad materials, some of which date to 922 AD. The building was located in downtown Cologne next to a tunnel that was being excavated for a subway line. On March 3, 2009, construction workers noticed large cracks appearing in … Continue reading Responding to a Threat