There are many different types of homes around the world. Homes provide shelter for people. Homes around the world presents five different types of homes in each book. Ages 6+.

Describes different types of underground homes, including dugouts, cave homes, and Earth-sheltered homes.

In 1925 the geological connection between Flint Ridge and Mammoth Cave was proved when dye placed in a Flint Ridge spring showed up in Echo River at Mammoth Cave. That tantalizing swirl of dye confirmed speculations that wereto tempt more than 650cavers over half a century with the thrill of being the first to make human passage of the cave connection. Roger Brucker and Richard Watson tell not only of their own twenty-year effort to complete the link but the stories of many others who worked their way through mud-choked crawlways less than a foot high only to find impenetrable blockages. Floyd Collins died a grisly death in nearby Sand Cave in1925, after being trapped there for 15 days. The wide press coverage of the rescue efforts stirred the imagination of the public and his body was on macabre display in a glass-topped coffin in Crystal Cave into the 1940s. Agents of a rival cave owner once even stole his corpse, which was recovered and still is in a coffin in the cave. Modern cavers still have a word with Floyd as they start their downward treks. Brucker and Watson joined the parade of cavers who propelled themselves by wiggling kneecaps, elbows, and toes through quarter-mile long crawlways, clinging by fingertips and boot toes across mud-slick walls, over bottomless pits, into gurgling streams beneath stone ceilings that descend to water level, down crumbling crevices and up mountainous rockfalls, into wondrous domed halls, and straight ahead into a blackness intensified rather than dispelled by the carbide lamps on their helmets. Over two decades they explored the passages with others who sought the final connection as vigorously as themselves. Pat Crowther, a young mother of two, joined them and because of her thinness became the member of the crew to go first into places no human had ever gone before. In that role, in July 1972, she wiggled her way through the Tight Spot and found the route that would link the Flint Ridge and Mammoth Cave systems into one cave extending 144.4 miles through the Kentucky limestone. In a new afterword to this edition the authors summarize the subsequent explorations that have more than doubled the established length of the cave system. Based upon geological evidence, the authors predict that new discoveries will add another 200 miles to the length of the world’s longest cave, making it over 500 miles long.

In Subterranean Twin Cities, geologist, historian, and urban speleologist Greg Brick takes us on an adventurous, educational, and-thankfully-sanitary journey beneath the streets and into the myriad tunnels, caves, and industrial spaces that make up the Twin Cities' fascinating and surprisingly vast underground landscape. In this groundbreaking tour, the first of its kind of the Twin Cities, Brick mines the stories that lie below the city surface.

DISCOVER JUST HOW LONG IT REALLY TAKES FOR A CAVE TO FORM

For generations, enterprising people in the southern Appalachians have turned the region's extensive network of caves into a strange, fascinating genre of tourist attraction. Visitors pay admission to take a tour deep underground, learning a little about history and geology while puzzling over lit-up rock formations said to resemble anything from Niagara Falls to the Capitol dome. Then off go the lights, enveloping the travelers in total darkness--until the guide flips them back on and welcomes folks back into the safety of the inevitable gift shop. Show caves, as Douglas Reichert Powell explains in Endless Caverns, are at once predictable and astonishing, ancient and modern, eerie and sentimental. Their story sparks memories of a fleeting cool moment deep underground during a hot summer vacation, capturing in microcosm the history and culture of a region where a deeply rooted sense of place collides with constant change. Reichert Powell takes readers along on his journey through the past and present of Appalachia's show caves, highlighting the characters who have owned and operated them, the ways the attractions have developed and changed over the years, and the odd intrigue that still leads people to buy their ticket and head underground. Tourist tastes may shift as interstates whisk travelers past the backroads and on to trendier destinations, but the show cave--like Appalachia itself--endures.

The second edition of this widely cited textbook continues to provide a concise but comprehensive introduction to cave and subterranean biology, describing this fascinating habitat and its biodiversity. It covers a range of biological processes including ecosystem function, evolution and adaptation, community ecology, biogeography, and conservation. The authors draw on a global range of examples and case studies from both caves and non-cave subterranean habitats. One of the barriers to the study of subterranean biology has been the extraordinarily large number of specialized terms used by researchers; the authors explain these terms clearly and minimize the number that they use. This new edition retains the same 10 chapter structure of the original, but the content has been thoroughly revised and updated throughout to reflect the huge increase in publications concerning subterranean biology over the last decade.