The edge of the sand dunes, Sisters Beach.
A rocky edge.
Leading edge of a Spitfire wing.
Aletta of nowathome posted a picture of a black and white cat sleeping on the edge of a chair. It made me think of Polly who often sleeps on top of the couch. She’s hiding at present because I had the vacuum cleaner out before sitting down to post but I did find this old one of her sleeping on the end of my bed, something she rarely does now.