Related Clues:

• Levels of a building
• Layers, strata
• Layers or thicknesses
• Layers, levels
• Knocks down with a punch
• About fifty broken roofs that aren't roofs at all
• The sort of rows that lead to the sound of weeping
• The sort of rows that lead to weeping, by the sound of them
• There's about fifty of them in the roofs under the feet
• Such stories are all underfoot
• Rows of them
• Building count
• Arena sections
• Fan belts?
• Stadium divisions