From the archives: De Brandgrens – the firestorm Rotterdam Daily Photo: From the archives: De Brandgrens – the firestorm The Germans bomded Rotterdam on May 14th 1940. These big lights did light up the sky to mark the border of where the firestorm did stop. Photographed in 2007, location Heliport. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on Pinterest (Opens in new window) Pinterest Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on Tumblr (Opens in new window) Tumblr Click to email a link to a friend (Opens in new window) Email