Hidden within the Airavatesvara Temple in Thanjavur, a city in the south Indian state of Tamil Nadu, lies a nearly nine-hundred-year-old optical illusion that continues to baffle viewers. Can you spot both animals in this carving?
This ancient image, intricately carved in stone, showcases an elephant and a bull. The Airavatesvara Temple believed to have been constructed in the late 12th century, is considered the world's oldest optical illusion.