Related Clues:

• See 50-Across
• See 37-Across
• English cathedral city
• See 38-Across
• Mall locale
• Author of this puzzle's quote
• President who asked the question
• Copper head?
• -
• Memorial flip side
• Monticello flip side
• Continental, e.g.
• Copper engraving fit for this puzzle
• Infiniti alternative
• Salt River dam