After confirmation of the site’s historical importance, it was was opened to the public - but later closed due to the effect of heavy footfall.

Arizona has always been a kind of open-air laboratory for the seemingly antithetical philosophy of conservation through commercialization. The only way the state’s natural wonders could be saved from ...

On September 12, 1940,an 18-year-old mechanic’s apprentice named Marcel Ravidat followed his dog Robot into a hole near a fallen tree outside Montignac in southwestern France. Four days later, he ...

Most people think of Mexico when they hear “cenote,” but Maui has secret freshwater caves that feel just as magical. Tucked ...