Watch this video on how to use the Bomb Sight website to find locations, dates and types of bombs that fell during the World War Two Blitz.
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The robbers casually approached their victim on a busy high street before before spraying a noxious substance in his face.
Tencho Hristov ignored warnings and got trapped between barriers at Roydon in Essex.
The 6km bike track will include 130m of the South Circular near Kew Bridge.