Modern Marvels - Season 20 (2012)

Just the whiff of a foul odor can make your head spin, your eyes water, your stomach turn--it can even send you hurling. From cesspools, military stink bombs, and rancid rotting meat... to cow farms and landfills... to bad breath, B.O and beyond.

Every aspect of our lives involves pressure. It's what puts the bubbles in soft drinks, propels shaving cream from its can, cools the contents of your refrigerator, and causes volcanoes to erupt. But when pressure suddenly changes, you better look out!

Foot covering is so much more than a fashion statement. High-tech soles, boots, sneakers, fire fighter and military footwear continue to be improved in an ever changing world.

The variety of jobs in America is endless--but some have to be seen to be believed. Our countdown of the top ten most fascinating jobs from our archives proves how daring and innovative the American worker can be.

For this countdown special, we're buckling up and punching it--as we raid the Modern Marvels archives for the hottest rides we've ever presented. From the retro to the rugged to the reckless, our top ten picks showcase our love affair with vehicles that blow back our hair or quicken our pulses. Our only limitation: they've got to stay earthbound--so no sea or aircraft. Other than that, anything goes...from one of Jay Leno's vintage autos to a sleek battery-driven roadster to a motorcycle you've got to see to believe. Our number 1 choice: a ride so hot that one ...

This countdown special goes gaga over gizmos--celebrating the most amazing gadgets Modern Marvels has ever featured. Our top ten contenders run the gamut from the indispensable to the insane...from golden oldies to newfangled novelties...all of them showcasing the wonder of human ingenuity. We'll unveil the secrets inside one of the 1960s' most iconic thingamajigs, reveal why an electronic doodad from the '90s was once considered a threat to national security, and rediscover the forgotten marvel created by Benjamin Franklin. Our number 1 pick: a household gadget ...

Modern Marvels is going big, and counting down. We take the "best of" Modern Marvels and give you the MEGA Top 10 countdown. On this edition, the top ten guilty pleasures you just can't resist... America's Favorite Foods.