John Wesley Powell described the Grand Canyon as “the great unknown.” Today, as you peer into its chasm from almost any vantage point on the rim, it appears so enormous, so remote and severe, it seems that no one could ever know it. But the stunning views from the rim of Grand Canyon National Park are only the beginning of the story. This tour will tell you the rest!

In 1963 Colin Fletcher became the first man to walk the length of Grand canyon, below the Rim. It began with a dream, when he and a friend detoured from a cross-country trip to take a hurried look at the great natural wonder. Standing on the Rim, surrounded by the profound and almost mystical silence, Fletcher knew that something had happened to the way he looked at things. He also knew that the Canyon, with its depths and distances, cliffs, buttes, and hanging terraces, beckoned to him, calling him on a journey that would challenge both his body and his mind.

In the late nineteenth century, people were obsessed by one of the last unmapped areas of the globe: The North Pole. No one knew what existed beyond the fortress of ice rimming the northern oceans. On July 8, 1879, the USS Jeannette set sail from San Francisco to cheering crowds in the grip of "Arctic Fever." The ship sailed into uncharted seas, but soon was trapped in pack ice. Two years into the harrowing voyage, the hull was breached. Amid the rush of water and the shrieks of breaking wooden boards, the crew abandoned the ship.

At a time when the edge of American settlement barely reached beyond the Appalachian Mountains, two visionaries, President Thomas Jefferson and millionaire John Jacob Astor, foresaw that one day the Pacific would dominate world trade as much as the Atlantic did in their day. Just two years after the Lewis and Clark expedition concluded in 1806, Jefferson and Astor turned their sights westward once again. Thus began one of history's dramatic but largely forgotten turning points in the conquest of the North American continent.

Pulitzer Prize winner Wallace Stegner recounts the remarkable career of Major John Wesley Powell, the distinguished ethnologist and geologist who explored the Colorado River, the Grand Canyon, and the homeland of the Southwest Indian tribes. This classic work is a penetrating and insightful study of the Powell’s career, from the beginning of the Powell Survey, in which Powell and his men famously became the first to descend the Colorado River, to his eventual expulsion from the Geological Survey.

How did America become “one nation, indivisible”? What unified a growing number of disparate states into the modern country we recognize today? To answer these questions, Winchester follows in the footsteps of America’s most essential explorers, thinkers, and innovators. Introducing the fascinating people who played a pivotal role in creating today’s United States, he ponders whether the historic work of uniting the States has succeeded, and to what degree.

From Graham Hancock, best-selling author of Fingerprints of the Gods, comes a mesmerizing book that takes us on a captivating underwater voyage to find the ruins of a lost civilization that's been hidden for thousands of years beneath the world's oceans. While Graham Hancock is no stranger to stirring up heated controversy among scientific experts, his books and television documentaries have intrigued millions of people around the world and influenced many to rethink their views about the origins of human civilization.

Listen to At the Earths Core with a movie-style soundtrack and amplify your audiobook experience. Dr. Abner Perry (Peter Cushing) is an English scientist who has invented a massive drill that can dig deep into the Earth. Joined by his adventure-seeking American backer, David Innes (Doug McClure), Perry accidentally discovers an underground civilization of primitive humans who live in fear of telepathic flying monsters. David becomes intrigued by the beautiful native Dia (Caroline Munro), and must rescue her when she is chosen as a human sacrifice.

Are there any genuinely wild places left in Britain and Ireland? Or have we tarmacked, farmed and built ourselves out of wildness? In his vital, bewitching, inspiring classic, Robert Macfarlane sets out in search of the wildness that remains.

When gold was discovered at Sutter's Mill on the American River, it completely transformed the territory of California. Hundreds of thousands of people sped to California by any means possible, and small cities sprung up to service their needs as they sought the precious metal. By 1850, California had become a state; it had also become a symbol of where the nation was going.

In this magisterial work of history and adventure, based on more than a decade of prodigious research in British, Canadian, and European archives, and months in the field in Nepal and Tibet, Wade Davis vividly re-creates British climbers’ epic attempts to scale Mount Everest in the early 1920s. With new access to letters and diaries, Davis recounts the heroic efforts of George Mallory and his fellow climbers to conquer the mountain in the face of treacherous terrain and furious weather.

Elegantly told against a haunting melodic backdrop, Crossing Open Ground's brilliant descriptions will sweep you into a new perspective - the land both gives us strength and molds our souls.

Part of John Muir's appeal to modern audiences is that he not only explored the American West and wrote about its beauties but also fought for their preservation. His successes dot the landscape and are evident in all the natural features that bear his name: forests, lakes, trails, and glaciers. Here collected are some of Muir's finest wilderness essays, ranging in subject matter from Alaska to Yellowstone, from Oregon to the High Sierra.

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

The paths of the great American robber barons were paved with riches, and though ordinary citizens paid for them, they also profited. Les Standiford, author of the John Deal thrillers, tells how the man who turned Florida's swamps into the playgrounds of the rich performed the almost superhuman feat of building a railroad from the mainland to Key West at the turn of the century.