Add Yahoo as a preferred source to see more of our stories on Google. A 14,000-year-old "optical illusion" carving shows how long people have tricked their eyes. Ambiguous images like this one, the ...

The carved stone figure shows a mammoth from one aspect and a bison from another, mirroring the most famous ambiguous image of a rabbit and duck from the 1800s. Like many optical illusions, these ...

THE world’s oldest optical illusion is still turning heads after 900 years – and what you see first is said to be very revealing. The image is carved in stone at Airavatesvara temple in Thanjavur, in ...

Dr Mamata R. Singh, a travel enthusiast has shared amazing pictures of optical illusions seens in Hindu temples. "Creating objects of 3D optical illusion was just a game for our ancestors..!!," Dr ...

Is what you see and what you think you see two different things? The ancient Greeks did think so. The Greco-Roman ruin of the Library of Celsus in Turkey, commissioned in 110 AD, is one of the most ...