Jesus, could spend HOURS looking round these sites.... I live right near the Thames.. We go our own underground airraid shelter in the back garden, there are LOADS of em round here, remember whenwe were kids used to see em alot and try to get in though most have been backfilled with concrete

Our school sites were pre war we soooo wanted to go into the underground rooms and wander round

http://underground-history.co.uk/cutncover.php#leinster