When Conor Knighton set off to explore America's "best idea", he worried the whole thing could end up being his worst idea. A broken engagement and a broken heart had left him longing for a change of scenery, but the plan he'd cooked up in response had gone a bit overboard in that department: Over the course of a single year, Knighton would visit every national park in the country, from Acadia to Zion.

Kim Stanley Robinson first ventured into the Sierra Nevada mountains during the summer of 1973. He returned from that encounter a changed man, awed by a landscape that made him feel as if he were simultaneously strolling through an art museum and scrambling on a jungle gym like an energized child. He has returned to the mountains throughout his life—more than a hundred trips—and has gathered a vast store of knowledge about them. The High Sierra is his lavish celebration of this exceptional place.

In 1954, 63-year-old Maine farmer Annie Wilkins embarked on an impossible journey. She had no money and no family, she had just lost her farm, and her doctor had given her only two years to live. But Annie wanted to see the Pacific Ocean before she died. She ignored her doctor’s advice to move into the county charity home. Instead, she bought a cast-off brown gelding named Tarzan, donned men’s dungarees, and headed south in mid-November, hoping to beat the snow.

This best-selling, groundbreaking exploration of the Far North is a classic of natural history, anthropology, and travel writing.

As a Yale School of Medicine physician, the New York Times best-selling author of Every Patient Tells a Story, and an inspiration and adviser for the hit Fox TV drama, House, M.D., Lisa Sanders has seen it all. And yet, she is often confounded by the cases she describes in her column: unexpected collections of symptoms that she and other physicians struggle to diagnose. Dr. Sanders shows how making the right diagnosis requires expertise, painstaking procedure, and sometimes a little luck.

At 22, Cheryl Strayed thought she had lost everything. In the wake of her mother's death, her family scattered and her own marriage was soon destroyed. Four years later, with nothing more to lose, she made the most impulsive decision of her life: to hike the Pacific Crest Trail from the Mojave Desert through California and Oregon to Washington State - and to do it alone. She had no experience as a long-distance hiker, and the trail was little more than “an idea, vague and outlandish and full of promise.” But it was a promise of piecing back together a life that had come undone.

The real stories behind the scenery of America’s national parks. For 12 years, Andrea Lankford lived in the biggest, most impressive national parks in the world, working a job she loved. She chaperoned baby sea turtles on their journey to sea. She pursued bad guys on her galloping patrol horse. She jumped into rescue helicopters bound for the heart of the Grand Canyon. She won arguments with bears. She slept with a few too many rattlesnakes. Hell yeah, it was the best job in the world! Fortunately, Andrea survived it.

At the beginning of his memoir Life Lived Wild: Adventures at the Edge of the Map, Rick Ridgeway tells us that if you add up all his many expeditions, he’s spent over five years of his life sleeping in tents: “And most of that in small tents pitched in the world’s most remote regions.” It’s not a boast so much as an explanation. Whether at elevation or raising a family back at sea level, those years taught him, he writes, “to distinguish matters of consequence from matters of inconsequence.” He leaves it to his listeners to do the final sort of which is which.

Every one of us contains a billion times more atoms than all the grains of sand in the earth’s deserts. If you weigh 150 pounds, you’ve got enough carbon to make 25 pounds of charcoal, enough salt to fill a saltshaker, enough chlorine to disinfect several backyard swimming pools, and enough iron to forge a 3-inch nail. But how did these elements combine to make us human?

J. Robert Oppenheimer was one of the iconic figures of the 20th century, a brilliant physicist who led the effort to build the atomic bomb but later confronted the moral consequences of scientific progress. When he proposed international controls over atomic materials, opposed the development of the hydrogen bomb, and criticized plans for a nuclear war, his ideas were anathema to powerful advocates of a massive nuclear buildup during the anti-Communist hysteria of the early 1950s.

An enthralling account of a modern voyage of discovery as we meet the clever, social birds of prey called caracaras, which puzzled Darwin, fascinate modern-day falconers, and carry secrets of our planet's deep past in their family history.

America's national parks spring from an idea as radical as the Declaration of Independence: that the nation's most magnificent and sacred places should be preserved, not for royalty or the rich, but for everyone. In this evocative narrative, Ken Burns and Dayton Duncan delve into the history of the park idea.

In the summer after graduating from college, Suleika Jaouad was preparing, as they say in commencement speeches, to enter “the real world”. She had fallen in love and moved to Paris to pursue her dream of becoming a war correspondent. The real world she found, however, would take her into a very different kind of conflict zone. It started with an itch - first on her feet, then up her legs, like a thousand invisible mosquito bites. Then a trip to the doctor and, a few weeks shy of her 23rd birthday, a diagnosis: leukemia, with a 35 percent chance of survival.

In 2003, software engineer David Miller left his job, family, and friends to hike 2,172 miles of the Appalachian Trail. AWOL on the Appalachian Trail is Miller’s account of this thru-hike from Georgia to Maine. Listeners are treated to rich descriptions of the Appalachian Mountains, the isolation and reverie, the inspiration that fueled his quest, and the rewards of taking a less conventional path through life. While this book abounds with introspection and perseverance, it also provides useful passages about hiking gear and planning.

Forty-four-year-old Alice Holtzman is stuck in a dead-end job, bereft of family, and now reeling from the unexpected death of her husband. Alice has begun having panic attacks whenever she thinks about how her life hasn't turned out the way she dreamed. Even the beloved honeybees she raises in her spare time aren't helping her feel better these days.

What do you do when your world ends? At 28 years old, Krista Schlyer sold almost everything she owned and packed the rest of it in a station wagon bound for the American wild. Her two best friends joined her - one a grumpy, grieving introvert, the other a feisty dog - and together they sought out every national park, historic site, forest, and wilderness they could get to before their money ran out or their minds gave in.

On the eve of turning 30, terrified of being funneled into a life he didn’t choose, Jedidiah Jenkins quit his dream job and spent 16 months cycling from Oregon to Patagonia. He chronicled the trip on Instagram, where his photos and reflections drew hundreds of thousands of followers, all gathered around the question: What makes a life worth living? In this unflinchingly honest memoir, Jed narrates his adventure - the people and places he encountered on his way to the bottom of the world - as well as the internal journey that started it all.

In 1968, Robert Pirsig and his son, Chris, made the cross-country motorcycle trip that was the basis for Zen and the Art of Motorcycle Maintenance, a book that has inspired generations with its searching personal and philosophical narrative. After rereading the book at the onset of middle age, reporter Mark Richardson tuned up his old Suzuki dirt bike and became a "Pirsig Pilgrim".

Following in the tradition of Ghost Rider and Traveling Music, Rush drummer Neil Peart relates nearly four years of band tours, road trips, and personal discoveries in this introspective travelogue. From the ups and downs of a professional artist to the birth of a child, this revealing narrative recounts 22 adventures from rock's foremost drummer, biker enthusiast, husband, and father.

Early in 2013 Neil Hayward was at a crossroads. He didn't want to open a bakery or whatever else executives do when they quit a lucrative but unfulfilling job. He didn't want to think about his failed relationship with 'the one' or his potential for ruining a new relationship with 'the next one'. And he almost certainly didn't want to think about turning 40. And so instead he went birding. Birding was a lifelong passion. It was only among the birds that Neil found a calm that had eluded him in the confusing world of humans.

In 36 thrilling days, Melanie Radzicki McManus hiked 1,100 miles around Wisconsin, landing her in the elite group of Ice Age Trail thru-hikers known as the Thousand-Milers. In prose that's alternately harrowing and humorous, Thousand-Miler takes you with her through Wisconsin's forests, prairies, wetlands, and farms, past the geologic wonders carved by long-ago glaciers, and into the neighborhood bars and gathering places of far-flung small towns.

On April 6, 1940, explorer and future World War II spy Theodore Morde (who would one day attempt to assassinate Adolf Hitler), anxious about the perilous journey that lay ahead of him, struggled to fall asleep at the Paris Hotel in La Ceiba, Honduras. Nearly seventy years later, in the same hotel, acclaimed journalist Christopher S. Stewart wonders what he's gotten himself into.

When Miss Norma was diagnosed with uterine cancer, she was advised to undergo surgery, radiation, and chemotherapy. But instead of confining herself to a hospital bed for what could be her last stay, Norma - newly widowed after nearly seven decades of marriage - rose to her full height of five feet and told her doctor, "I'm 90 years old. I'm hitting the road." Packing what she needed, Norma took off on an unforgettable cross-country journey with three professional nomads - her retired son, Tim; his wife, Ramie; and their standard poodle, Ringo.

For 30 years, drummer, author, and songwriter Neil Peart had wanted to write a book about "the biggest journey of all in my restless existence: the life of a touring musician." Finally, the right time, and the right tour. In the summer of 2004, after three decades, 20 gold albums, and thousands of performances, the band Rush embarked on a 30th Anniversary World Tour. The "R30" tour traveled to nine countries, where the band performed 57 shows for more than half a million fans. Uniquely, Peart chose to do his between-show traveling by motorcycle, riding 21,000 miles of back roads.

You are made for freedom and adventure, friendship and romance. Yet too much of your life is spent unfulfilled at work, restless at home, and bored at church. All the while, you know there is something more. You'll find some of life's best moments waiting for you over a campfire, on a river - even in that coffee shop or brewery you didn't know you'd discover along the way. It's time to begin the search.

Emma Gatewood told her family she was going on a walk and left her small Ohio hometown with a change of clothes and less than $200. The next anybody heard from her, this genteel, farm-reared, 67-year-old great-grandmother had walked 800 miles along the 2,050-mile Appalachian Trail. And in September 1955, atop Maine's Mount Katahdin, she sang the first verse of "America, the Beautiful" and proclaimed, "I said I'll do it, and I've done it."

Newbery Medal winner Paul Fleischman writes a profoundly moving story of connectedness and the journey of a young soul to self-discovery. Told through the voices of five characters and narrated by age-appropriate actors, Whirligig compels the listener with its lesson on how our actions can impact the lives of others - even years later. A stunningly authentic listening experience.

On her 120-acre homestead high in the Colorado Rockies, beloved writer Pam Houston learns what it means to care for a piece of land and the creatures on it. Elk calves and bluebirds mark the changing seasons, winter temperatures drop to 35 below, and lightning sparks a 110,000-acre wildfire, threatening her century-old barn and all its inhabitants. Through her travels from the Gulf of Mexico to Alaska, she explores what ties her to the Earth, the ranch most of all.

A loving and devoted step-father, Donnie introduced Tracy Ross's family to the joys of fishing, deer hunting, camping, and hiking among the pristine mountains of rural Idaho. Donnie was everything Tracy dreamed a dad would be: protective, brave, and kind. But when his dependence on his eight-year-old daughter's companionship went too far, everything changed.

Ian Frazier trains his eye for unforgettable detail on Siberia, that vast expanse of Asiatic Russia. He explores many aspects of this storied, often grim region. He writes about the geography, the resources, the native peoples, the history, the 40-below midwinter afternoons, the bugs. The book brims with Mongols, half-crazed Orthodox archpriests, fur seekers, ambassadors of the czar bound for Peking, tea caravans, German scientists, American prospectors, intrepid English nurses, and prisoners and exiles of every kind....

In 36 thrilling days, Melanie Radzicki McManus hiked 1,100 miles around Wisconsin, landing her in the elite group of Ice Age Trail thru-hikers known as the Thousand-Milers. In prose that's alternately harrowing and humorous, Thousand-Miler takes you with her through Wisconsin's forests, prairies, wetlands, and farms, past the geologic wonders carved by long-ago glaciers, and into the neighborhood bars and gathering places of far-flung small towns.

Despite her success setting a self-supported Fastest Known Time record on the Pacific Crest Trail in 2013, Heather “Anish” Anderson still had such deep-seated insecurities that she became convinced her feat had been a fluke. So two years later she set out again, this time hiking through mud, rocks, and mountain blazes to crush her constant self-doubt and seek the true source of her strength and purpose. The 2,189 miles of the Appalachian Trail, from Maine to Georgia, did not make it easy.

When Conor Knighton set off to explore America's "best idea", he worried the whole thing could end up being his worst idea. A broken engagement and a broken heart had left him longing for a change of scenery, but the plan he'd cooked up in response had gone a bit overboard in that department: Over the course of a single year, Knighton would visit every national park in the country, from Acadia to Zion.

In this exquisitely written book, Robert Macfarlane sets off from his Cambridge, England, home to follow the ancient tracks, holloways, drove roads, and sea paths that crisscross both the British landscape and its waters and territories beyond. The result is an immersive, enthralling exploration of the ghosts and voices that haunt old paths, of the stories our tracks keep and tell, and of pilgrimage and ritual. Told in Macfarlane’s distinctive voice, The Old Ways folds together natural history, cartography, geology, archaeology, and literature.

Alaska's Arctic National Wildlife Refuge, home to only a handful of people, is a harsh and lonely place. So when James Campbell's cousin Heimo Korth asked him to spend a summer building a cabin in the rugged Interior, Campbell hesitated about inviting his 15-year-old daughter, Aidan, to join him. Would she be able to withstand clouds of mosquitoes, the threat of grizzlies, bathing in an ice-cold river, and hours of grueling labor peeling and hauling logs? But once there, Aidan embraced the wild.