The precise locations of the caves referred to in this column have been left deliberately vague to protect both the caves and inexperienced persons who might wish to enter them.

The precise locations of the caves referred to in this column have been left deliberately vague to protect both the caves and inexperienced persons who might wish to enter them.

The Bisti/De-Na-Zin wilderness in the northwest corner of New Mexico is hot and dry for much of the year — when it is not bitter cold and dry — and it is far from the regions that are well-known to

The engineering achievements of the ancients astound us: The vast size and precision of the Egyptian pyramids, the extraordinary aqueducts of the Romans, the incredible invention of Greek temples s

It is impossible to sleep.

Everyone remembers the first time they see the Grand Canyon.

The mist-enshrouded history of Ireland is replete with stories of ghosts and other supernatural manifestations.

The death of farmer and caver Floyd Collins and the subsequent grotesque events — including some legendary ghost stories — constitute a strange chapter in the annals of American folklore.

The viewing of a total solar eclipse is commonly described as “a religious experience.” It was perhaps fitting then that mine occurred on the grounds of a small Methodist church in the beautiful gr

There are places in the world and within the United States in which layers of rock — called strata — record hundreds of millions of years of Earth’s history and are stacked atop one anoth