I would destroy the Barbican. It is the biggest heap of ugliness imaginable--extensive, intrusive, characterless, unfunctional. There are no bricks, but every brick should be metaphorically destroyed. It is a miserably bad complex. The residential part is especially terrible. Because the rooms are so small, the doors have to open outwards. They act as cheese-cutters when you walk past, or suddenly swing open when you are peeing.