A NUCLEAR bunker covered in reinforced concrete looks ugly from the outside-but metres below the surface hides an incredible secret. Three luxury apartments nestled beneath the Grade II listednuclearbunker in Mistley, Essex, are going up for auction later this month-with a guide price of ￡1. 4million.... Do you have a story for The Sun news desk?... We pay for videos too. Click here to upload yours. Click here to get The Sun newspaper delivered for FREE for the next six weeks....