Related Clues:
- Field protector, maybe
- Rainout preventer
- Topper for St. Peter's Basilica
- Concave ceiling
- Soft drink holds up high ceiling
- Feature of Columbia's Low Memorial Library
- Capitol crown
- Feature of some modern stadiums
- Domelike building top
- Stadium with a roof
- Oft-retractable stadium feature
- Curved roof
- Copper getting a cut climbing dome
- A tailing copper cut back round roof
- Fuller claim to fame