Well, London's Millennium Bridge did not collapse, but it did sway alarmingly when crowds of people walking on it were forced into resonance, resulting in the i

Well, London's Millennium Bridge did not collapse, but it did sway alarmingly when crowds of people walking on it were forced into resonance, resulting in the immediate closure of the bridge before it could be fixed. https://en.wikipedia.org/wiki/Millennium_Bridge,_London#Resonance https://en.wikipedia.org/wiki/Millennium_Bridge,_London#Reso...