The Eiffel Tower can be 15 cm taller during the summer, due to thermal expansion meaning the iron heats up, the particles gain kinetic energy and take up more space..
Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia’s diameter from east to west is almost 4000km..
No one knows the name of the fire hydrant's inventor because the patent for this invention was burned in a fire..
Twisting the finger against the temple in Argentina means "I think". In other countries this gesture means "crazy"..