Imagine the surprise of young lumberjack, Ho Khanh, a native of Vietnam's then-sleepy Phong Nha township, when he saw enormous, ethereal columns of fog billowing out of the ground, like the earth ...

Thanks to a high concentration of limestone beneath the ground, Indiana has caves galore. This is especially true in southern-central Indiana, where there are many clusters of tourist caves ripe for ...

The Bell Witch legend dates to the early 1800s when the Bell family reported hauntings on their Tennessee farm. The Bell Witch Cave in Adams, Tennessee, draws thousands of visitors annually, ...