Related Clues:

• Half-dome construction
• Where icons may be seen
• Church's main area
• Recess for the masses?
• Arched recess
• Anagram for "peas"
• Vault may finally collapse
• Part of the church
• Polygonal church projection
• Its glass may be stained
• Area of a church
• It may have stained-glass windows
• It abuts the bema, sometimes
• Semicircular church feature
• Place for relics, perhaps