Host Mo Rocca shows us the dog washing wand invented 20 years ago by a 4th grader, that's a hit today; advances in Holograms; cardboard tents cleaning up festivals in Europe; and the car that innovated safety.

Host Mo Rocca shows us the innovation of re-breathing air under water; the engineering wizardry in massage chairs; the spider catcher saving the 8-legged crawlers; and circling around the history of carousels.