
How would you like to run a roller coaster right through your home? It could start at any high spot, run through bedrooms and the kitchen, and pop out the front door. Someone actually built a coaster like this as a way to sell a house. Read on to see how one Dutch realtor crunched the numbers to create the most fun way to tour a house in style.

From height to speed, roller coasters are full of math. And what better day to celebrate the tallest of the tall and fastest of the fast roller coasters than on National Roller Coaster Day? Read on to find out just how high and fast you can go with these radical rides – and speed through the math!

What can $81 buy you? Apparently an old amusement park waterslide for your backyard! Read on to see how an amusement park’s trash was one grandpa’s treasure – and slide your way through the math.