The internet loves a good optical illusion, and the latest to divide puzzle fans features a mystery lake.
![Wall or lake? The latest optical illusion doing the rounds online has puzzle fans baffled. Photo / Playbuzz](https://www.nzherald.co.nz/resizer/v2/3PL7AX7CHKJU54ILBP7KMTCU3M.jpg?auth=1d5f25a74f32668adf1583d7f9a4c4c136f8f20a0fc44ef69f1576ecd0a3546f&width=16&height=12&quality=70&smart=true)
The scene looks simple enough, but viewers are scratching their heads as to whether there is a wall in the foreground, or a body of water.
The puzzle originally appeared on PlayBuzz, before being picked up by a range of British newspapers.
If you guessed there was a lake in the picture, look again...