This just blows my mind!!!

Danger UXB

From British Heritage magazine Nov 2008

Bromley-by-Bow

The largest unexploded World War 2 bomb found in London in 30 years was uncovered this June near the Bromley-by-Bow Underground Station. Construction workers uncovered the 2000 pound bomb during preparatory work for the construction of the 2012 Olympic Village.

Lying on a gas main only 50 yards from East London's principal sewage pumping station, the device had been dormant for more than 60 years . It took army experts several days of painstaking operations to defuse the sensitive bomb,which started ticking when it was disturbed. Meanwhile, a 200 yard exclusion zone was created. Several Underground stations were closed and two lines suspended,generating havoc for thousands of commuters.