A cat’s ability to see well at night is due to its ” tapetum lucidum “, a structure that reflects visible light back through the cat’s retina. It’s also what causes the eyes’ weird ‘glowing’ effect in the dark.

The Walls of Benin City were the world’s largest man-made earth structure, four times longer than the Great Wall of China. They were ravaged by the British in 1897.

Friedrich August Kekulé discovered the ring-shaped structure of the organic chemical compound benzene while daydreaming about the famous circular symbol of a snake eating its own tail.

Novelist Guy de Maupassant denounced the Eiffel Tower as a “useless and monstrous” structure. He liked to eat his meals in the restaurant at the tower’s base, as it was the only place where he didn’t have to look at it.