Bhubaneswar, Dec. 25 -- On Christmas, homes and public spaces come alive with festive decorations, with the traditional Christmas tree taking centre stage.

Amid this festive spirit, here's an engaging themed optical illusion for you. The challenge is to spot four Christmas trees without decorations.

Optical illusions are tricky images that are often perceived in a manner that differs from their actual reality. However, they are a fun way to exercise your brain muscles to sharpen them.

Hungarian graphic artist Gergely Dudas has created a viral Christmas-themed illustration and shared the picture on Instagram which has caught the internet's attention.

Dudas has challenged the netizens to four Christmas trees without decorations among a ...