How many bricks are in The Wall? We explain how Roger Waters builds a giant wall at his concerts

chicagotribune.com: "To answer one of the great unasked questions in rock 'n roll: All in all, there are precisely 424 bricks in The Wall.
There are 242 bricks in the 100-foot-long center section, with the rest stacked along the edges of the stage, climbing off into the arena; these edges are called 'ramparts' by the creators of The Wall, the small corps of British architects, musicians and American filmmakers responsible for it.