Related Clues:

• Pigeon place
• Narrow shelf
• Something just outside your window?
• Feature of a bluff
• Mantel
• Window projection
• Cliff protrusion
• Skyscraper feature
• Climber's toehold
• Houseplant place
• Mantel, for example
• Pigeon's perch, at times
• It runs around a building
• Climber's respite
• Pigeon perch, sometimes