From Niagara Falls to the Redwood Forests, state parks preserve many of the nation’s iconic landscapes and historic treasures ...

Scientists have been locked out of two "live" caves on public land east of Tucson for more than two years, threatening their work and the gathering of irreplaceable baseline data, according to ...

Step into an Arkansas cave where glowing formations, cool air, and echoing chambers make it feel like you’ve entered another ...

Step off the desert trail and into Arizona’s longest cave, where crystal formations and subterranean wonders await.

Jose Noperi, Jr., a math teacher at TUSD’s Valencia Middle School, is the March winner of the Teacher Excellence Award. Noperi has taught at Valencia for 12 years and currently coaches the girls ...

Ancient Buddhist viharas and Hindu sculptures hide in modern Mumbai's shadow, offering a cool, meditative escape from the ...