Antarctica covers more than 5 million square miles - yet almost no one is allowed to explore it freely. From international treaties and military zones to deadly weather and hidden research bases, the ...

Ni’ihau is 17 miles off the coast of Kauaʻi, yet it feels like a world away. The place is so isolated and untouched by modern life that it’s been dubbed as "The Forbidden Island." For over a century, ...