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
Wall or lake? The latest optical illusion doing the rounds online has puzzle fans baffled. Photo / Playbuzz

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...

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The light on top of the wall draws the eye into the picture. Photo / Playbuzz
The light on top of the wall draws the eye into the picture. Photo / Playbuzz

According to Playbuzz, what looks like a lake is actually a light-coloured wall, and the white 'shoreline' is the light catching the top of the structure.

Other internet gems have included the 'spot the panda' picture, the 'campsite riddle', the 'intelligence test', and of course, the infamous dress colour debate.

Recently, another optical illusion that had the internet stumped involved a seemingly benign wall of bricks.

Just a brick wall? Or is there something else going on here?
Just a brick wall? Or is there something else going on here?

In the picture, what looks like a patch of plaster is actually a cigar wedged into the wall.

This humble wall of bricks drove the internet crazy.
This humble wall of bricks drove the internet crazy.

-nzherald.co.nz