Photos: Magnificent views of the nighttime heavens in America's 'Dark Sky' parks By Linda, Dick Buscher Skywatchers can see the beauty and vastness of the nighttime skies in these dark sky-designated parks.
Lassen Volcanic National Park: The West’s Most Beautiful, Least-Visited Wonderland (Photos) By Linda, Dr. Dick Buscher The national park is full of steaming vents, snowy trails, diverse wildlife, colorful wildflowers and heavenly night-sky views.
Dino Graveyard: Photos of Dinosaur National Monument By Linda, Dr. Dick Buscher The world's richest quarry of dinosaur fossils is located in the American West, at Dinosaur National Monument.
In Images: Volcanic Monoliths of the American West By Linda, Dr. Dick Buscher Arresting features rise above the plains.
Weird World of Lichen: Anything But Ordinary By Linda, Dr. Dick Buscher Learn about strange, symbiotic organisms.
Nature's Giants: Photos of the Tallest Trees on Earth By Linda, Dr. Dick Buscher Giant sequoias and redwoods are towering sights.
Photos: Strange & Spectacular Karsts of China By Linda, Dr. Dick Buscher Stunning peaks create otherworldly atmosphere.
Saguaros: Living Bouquets of the Sonoran Desert (Photos) By Linda, Dr. Dick Buscher These desert giants boast their own bouquets.
In Images: Mysterious Desert Varnish By Linda, Dr. Dick Buscher Strange rock coating isn't fully understood.
Granite Photos: Bedrock of the Earth By Linda, Dr. Dick Buscher Sturdy granite makes up mountain peaks and famous natural structures.
Poinsettia: Flower of the Christmas Season By Linda, Dr. Dick Buscher This native of Central America became a symbol of the winter holidays.
In Photos: Peek Into the World of Prairie Dogs By Linda, Dr. Dick Buscher These icons of the American grassland prairie are important for maintain these ecosystems.
Springtime in the Sonoran Desert By Linda, Dr. Dick Buscher Color erupts when spring comes to desert.
Hell on Earth: Image Tour of Death Valley By Linda, Dr. Dick Buscher See salt flats & wandering rocks.
Sights and Sounds: Cali's Gurgling Mud Volcanoes By Linda, Dr. Dick Buscher Escaping gas creates belching mudpots.
Florida Everglades: Follow the 'River of Grass' (Photos) By Linda, Dr. Dick Buscher Birds, gators and crocs in shallow wetlands.
Exploring Africa's Cape of Good Hope By Linda, Dr. Dick Buscher See steep cliffs, unique animals and world-famous diving.
Meteor Crater: Experience an Ancient Impact By Linda, Dr. Dick Buscher Peek into Earth's best-preserved impact crater.
In photos: The ancient Roman baths of Bath, England By Linda, Dr. Dick Buscher Natural springs revered by ancient cultures.
Photos: Bald Eagles of the Mighty Mississippi By Linda, Dr. Dick Buscher See where this American icon spends its winters.
In Photos: The Wild Cats of Kruger National Park By Linda, Dr. Dick Buscher Lions, leopards, cheetahs in South African Park.
Photos: The Scrumptious Chocolate Falls of Arizona By Linda, Dr. Dick Buscher Arizona's Grand Falls are dry most of the time. But during spring runoff, the water runs like chocolate.