Two million people wash their car every single day; taking a look at all the technology used to keep those beloved vehicles sparkling clean.

All aboard! Modern Marvels takes a ride on the fastest and most powerful locomotives from around the globe. From France's 300 MPH speed train to future trains that glide on cushions of air to mining locomotives that traverse tunnels 700 feet underground, we'll catch a ride on the little-and big-engines that can.