What can you buy with $1? How about an 848-foot-tall rock? That’s what one man did back in 1915. Then he decided to put zig-zaggy paths up it, so people could climb it. Read on to do the math on how the climbing and hiking really add up when you’re zig-zagging your way up a giant rock.
If you crack open enough cooled lava rocks, you might find a shiny surprise in one of them. But just how many would you have to smash to find this sparkling rock? Read on to find out – and shine bright with the math!