Discovered diogo?*
Not really discovery when it has big brown tourist signs...come on!
I spent a large portion of my youth sheltering from the rain in air raid shelters.
Huge one in the local park, another at the bottom of the garden, third one in the town centre for years...an unlocked door on a bombsite car park that was an underground party site for years...where we learn the freedom of access that could be gained using the old family set of long handled bolt cutters...if you cut the padlock neatly, and do no other damage, you have sheltered access for sports and games underground for years...
Even had lighting!
*My reading error, sight issues due to attempting reading before early morning medications.
Covered, not discovered...you northern prat.
Stand easy, as you were.
You tube videos were one of the things I had to reduce doing, due to real world/personal sanity issues.
That and ridetimes in general.
Radioactive shit has always been really good fun though...I can tell vaseline glass from green tinted and uranium stuff now, staggering round the old shopping arcades on Lord Street in Southport...you can get lost in there for whole days on end.
Dont take any old measuring devices with you though, they would only accuse you of nicking it!