Lights along the fire line of Rotterdam
Lights along the fire line of Rotterdam
Credit: Commons user Trebaxus

Lights were lit along the fire line of Rotterdam on May 14, 2007 to commemorate the Rotterdam Blitz, where Nazi Germany bombed the city as part of Case Yellow. Over ninety tonnes of bombs were dropped over the city, mainly in the heart, and around 1 square mile (2.6 km2) of the city was razed, killing over eight hundred people.