Descending into Crystal Cave is so surreal that it feels like you're entering a movie set and at any moment Indiana Jones will come swinging through with his whip. The nearly 130-year-old cave is not ...

When Colossal Cave Adventure was first circulating among computer enthusiasts in the '70s, I wasn’t even born yet. I’ve never had the pleasure of experiencing the original spelunking adventure, but ...

Europe is rich in history, but its splendid castles, antique churches, and age-old ruins tell only part of the story. To dig even deeper in time — much deeper — visit a cave. Some of my favorites, in ...

Europe is rich in history, but its splendid castles, antique churches, and age-old ruins tell only part of the story. To dig even deeper in time – much deeper – visit a cave. Some of my favorites, in ...