Watch Modern Marvels Season 17 in Australia

The colossal cornerstones of commerce. Oversized outfitters. Merchandise Moguls. Mega Stores are giant facilities engineered to keep up with America's supersized habits. They are the largest, busiest places in the country. Their greatest challenge: keeping up with demand on a massive scale, and to do it, they have everything from scuba divers to sandblasters. It's not what's on the shelves–it's what happens behind the scenes.

The US has become the culture of BIG–just look at the importance of size and how it has been infused into the lifestyle we choose to live, whether it's our homes, our appliances such as large screen TVs or even eccentric stretch limos. But big has also affected what we eat. This episode explores America's growing obsession with plus-sized meals and how we cook them! Discover the largest everyday offerings of gargantuan portions–from the biggest stacked burger in the world (at almost 250 pounds), a plus-sized Sicilian pizza that feeds almost 75 people, a 72-ounce steak no real cowboy can resist, and the seven-pound hot dog that's too big for a bun. Top it all off with a giant cupcake, humongous cinnamon roll or a five pound gummy bear… and chase it down with a monster bottle of beer that holds over 101 ounces of brew.

Tens of millions of them all over the world–soda and snack machines, parking meters and payphones, video games and vending machines… and they all use coins–but for how long? Examine the historic one-armed bandits and the 21st century, cutting edge, computerized slot machines that occupy Vegas casinos and get an exclusive look at their inner workings in a never-before-seen factory in Reno, Nevada. Search out some of the wackiest, strangest vending machines on the planet that sell everything from bottles of wine to dog washes. Get a close-up look at the famous binoculars located at popular tourist sites around the world, as well as a unique company that collects and cleans the coins thrown into fountains for good luck. But it all starts and ends in the historic halls of the U.S. Mint, where coins are made and destroyed. Will coins one day become obsolete?

They are catastrophic failures with deadly consequences. Caused by a single spark or a massive collapse, these disasters reveal one thing–the danger inherent in our most common industries. From a massive oil spill to refinery blaze to a downed plane, find out what went wrong… and how to prevent the next engineering disaster.

Man's best friend–fearless, faithful, determined and swift. They're our sharpest eyes, noses and ears–and among the bravest hunters, soldiers, rescuers, and protectors. From natural instincts to complex training, see what makes dogs a perfectly engineered Modern Marvel.

Enter the amazing and ingenious ultra-sturdy shelters, machines, containers, materials and packaging designed to deny the ruination of society. The drive to create the indestructible has inspired some of the most prolific and awe inspiring results: The Cold War spawned personal bomb shelters in the 1950s. They weren't truly safe and secure, but today's 21st century version will last a millennium. And so will the special food you can get, along with all the comforts of home–like running water, plumbing and electricity. Caskets serve as our final resting place, but how long do they really last? Investigate how valuable data from a plane crash survives in a "black box" (that's not really black), to explain what might have caused the accident. And get an intimate look at the new "home" that protects and preserves one of the world's most valuable documents–the case that houses the original Declaration of Independence.

Just below the surface, there's a whole different America hidden from public view. Take a revealing look at the America under our feet, from secret military installations, and experimental farms to tunnel networks and neutron lasers.

Since the dawn of the Industrial Revolution, the United States has stamped, carved, cut, built and assembled its way into becoming the super power of product production. However, in the last 20 years, the "Made in America" tag began to fade, as the manufacturing landscape of industry went overseas. So what is still Made in the USA? Visit the world's biggest and oldest flag manufacturer, which has made some of the most famous flags in history. Go inside the factories that produce the last athletic shoe made in the US. See the strangest form of alternate transportation known to man–completely assembled in 30 minutes. Check out a hot toy company that believes it's imperative to keep their work here at home. Top it all off with some great food–some American success stories that may seem foreign at first glance. It's not just a label. It's a proud and important tradition.

Get behind the wheel and take control of the some of the largest, fastest, most powerful machines on the planet. These aren't your average vehicles–and handling one of these rides is unlike anything else. But you need more than just a learner's permit to take control of these vehicles…you need training, experience, and above all, guts–if you plan to sit in the Driver's Seat.

You can fry it up, eat it for breakfast, or quaff it down on a hot summer day. It's the world's most versatile grain: RICE. At last count, there were over 140,000 types–white, brown, long-grain, wild, short-grain, jasmine, Arborio, Basmati, black Thai, sweet, sticky–enough to satisfy any discerning palette. From the mountaintops of Nepal to the fertile fields of California and Arkansas, we'll find out everything there is to know about growing, harvesting and milling this tiny, life saving fare. We'll travel to restaurants and distilleries to experience the delicious creations talented masters whip up. It comes in all the colors of the rainbow, served up everyday in countless dishes. It even brews into alcoholic drinks–sake and beer. We'll also go inside the factories that make Rice Cakes and Rice Krispie Treats to discover how they use RICE to make their "snackable" delights.

It's all around us–so much a part of our lives that we forget it's there. But try to survive a single day without packaging. This episode reveals the astounding technology and ingenuity required to create our packaged world. At a Michigan company that designs water bottles, we'll show you how engineers find their inspiration from a bell pepper. In New Jersey, the makers of bubble Wrap clue you in on their manufacturing secrets. In Texas, workers conquer the challenge of packaging the world's largest crane. And you'll also see how America's military goods and supplies are packaged and shipped by the United States Transportation Command. Other stories include a new easy to open package that's the cure for "wrap rage"–and how NASA engineers packed a fragile humanoid robot for a trip into orbit.

In our lifelong battle to fight friction, Grease–in all its forms–is the unsung hero. Journey deep into places few people ever get to see, to discover the "hidden" uses of one of our most slippery products inside giant machines. We'll also investigate how it's made in a factory in New York, as well as what new advances some are working towards for grease of the future. But in the meantime, we'll witness how it is currently used inside a US Navy aircraft carrier, San Francisco's famous cable cars, elevators and escalators, assembly lines, huge excavators, amusement park rides, and even the Panama Canal. From pig fat to nano-particles… amazing Grease keeps everything rolling along–smooth and fast.

From hauling our heaviest gear to mastering the tallest mountains, they have been around for centuries, but we constantly improve upon them. Get an inside look at factories where every kind and style of Ropes & Chains are made. We'll get some lessons from a company that trains high-flying workers who depend on rope to do their jobs safely. Learn how window washers, rock climbers and even bungee jumpers safely use the ropes they depend on every day! See dockworkers who rely on ropes around the clock, and pay a visit to the head-spinning factory floors where some of the strongest ropes available are made. See how industrial chain links come to life from just a rusty steel coil and how they're used to anchor massive ships and unload cargo. From parachute cord to shipping lines, from fine jewelry to anchor chains–we'll discover the many uses of today's Ropes & Chains.

America would come to a standstill without trucks. Trucks transport a staggering 70 percent of all the nation's goods. Explore the amazingly diverse world of American trucks and the colorful men and women who drive them. Join country superstar Brad Paisley and his crew of truckers on the road between Little Rock and Tulsa–racing the clock to be on time for Brad's next concert. In Dearborn, Michigan, climb aboard one of the most popular pickups–the Ford F-150–as it tackles a devilish test course. And in Virginia, see how fast the world's most nimble tow truck can extract a car from the tightest parking spot imaginable. Meet a Mack truck fanatic and his cool collection of vintage models, and ride-along with an unsung hero with a truly dirty job–operating a truck designed to empty and clean portable toilets.