Remember when "everybody's doing it" was reason enough to dive in headfirst? From gravity-defying flagpole sitting and phone booth cramming, to pet skunks and goldfish gulpers, we reveal the wildest crazes that once swept the nation. These over-the-top obsessions were risky, and impossible to resist. It's a jaw-dropping, head-shaking trip back to the fads that pushed the limits and made our hazardous history must-see mayhem.

Remember when looking your best meant risking life and limb? From dentures that could explode at the dinner table and stiff shirt collars that strangled us to death, the pursuit of the perfect look once pushed us to surprisingly dangerous lengths.

It's a mind-blowing, bone-rattling trip through the toys of yesteryear that remind us of a time when childhood was wilder, freer, and far more hazardous.

Henry Winkler explores the era when travel was a death trap. From exploding steam engines to seatbelt-free cars, find out how your commute used to be a high-stakes gamble with your life.

Henry dives into the hidden hazards found in and around the home. From backyard trash fires and the flood risks of waterbed mishaps to finger-pinching fans and toxic garden hoses, the risky domestic conveniences of the past that are now unthinkable today.

Henry Winkler revisits the bone-breaking fun of vintage amusement parks and fairs. From rickety wooden coasters to zero-safety carnival rides, see how our quest for a cheap thrill used to be a one-way ticket to the ER.

Remember when hobbies were more than just a way to pass the time - they were a chance to push the limits? From making model planes with glue that gets you high, to cooking up explosive rocket fuel in the backyard, to strapping ourselves to homemade kites and launching into the unknown, these hands-on pursuits often came with a dangerous edge. It's a thrilling, hair-raising trip back to the crafty obsessions that prove our hazardous history was never just a hobby.

Remember when popular tourist attractions came with real danger? From climbing onto the backs of live alligators, to hand-feeding hungry bears, to scoring front-row seats to atomic blasts, these heart-pounding experiences promised irresistible thrills you'd never forget - where the risk was part of the draw. It's a jaw-dropping, pulse-racing trip back to the places that prove our hazardous history wasn't just entertaining - it was a death-defying must-see!

Remember when being part of the crowd meant taking your chances? From packing in shoulder to shoulder for front row views of Civil War battles, to lining up to watch dead whales explode, to full-blown riots while shopping, the biggest shared moments didn't just bring people together - they stirred things up. It's a wild, edge-of-your-seat trip back to the gatherings that prove our hazardous history was anything but orderly - but always had an eager audience!

When earning a paycheck meant risking life and limb. From dangling off skyscrapers without safety harnesses and riding runaway logs down raging rivers, to digging up corpses for cash and selling your own blood to scrape by, people once took unbelievable risks no paycheck could truly cover. Whether racing pizzas across town at breakneck speed or pulling off death-defying Hollywood stunts, people once did whatever it took to earn a living.

When being young meant testing the limits of what our bodies could survive. From launching our bikes off homemade ramps and playing chicken in traffic, to using dangerous construction sites as our playground, childhood adventure was often intertwined with how far you were willing to go--and the consequences that came with it. Armed with cherry bombs, slingshots, and more confidence than caution, we pushed boundaries in ways that would make parents today shudder.

From personal jetpacks that promised to send us sky-high, to electrified exercise machines that shocked us into shape, to firefighting hand grenades hurled straight into the flames, yesterday's boldest inventions were packed with promise - and risks nobody saw coming. These are the ambitious ideas, futuristic gadgets, and engineering marvels that aimed to revolutionize everyday life, but sometimes overshot the mark.

From perilous playgrounds to precarious products, Henry Winkler hosts a running cavalcade of the most exciting, reckless, unsupervised tales of Americana in our history.

From chocolate eaten out of the gutter, to a single cup of ice cream shared by the entire neighborhood, to breakfast cereal that produced colorful consequences, yesterday's culinary delights weren't always as wholesome as they seemed.

These are the engineering feats and automotive innovations that transformed the journey… even if not every bright idea belonged in the fast lane.