Vietnam's Son Doong cave is so large, you could squeeze 15 Great Pyramids of Giza inside it and fly a Boeing 747 airplane ...

Once merely dumped, these ashy-grey, fist-size chunks — called slag — were the unloved scum left over ... The traditional way of making cement is by heating limestone in kilns hot enough to melt rock.

Guam has 40 times more spiders than neighbouring islands – and a population of invasive snakes so voracious, they have ...

There are some places in the world that are so unusual, so mystical, so strange, so stunning – that it is hard to believ ...

Up close, you see the Burren isn’t a featureless expanse of limestone — rather, it’s a place where the rock wanders in ...

Google's travel trends reveal top winter destinations like Cancun, Tokyo, and Rome. Meanwhile, unique accommodations like a ...

One of the 20th-century's biggest quests was to find the “missing link,” a being who connected humans to their pre-historic ...

On the northwest border of Slovenia is a mountain range as dramatic as it is accessible, offering hut-to-hut hiking on ...

Rainbow Trout are not a native fish to Iowa, but they have had successful lives as an introduced fish into the cold water ...

Bukit Keteri is a unique karst formation consisting of a limestone tower and cave, ideal for hiking and rock climbing ...

Its fossils were unearthed from limestone rocks laid down as sediment sometime ... researchers now realize that pterosaurs grew to larger sizes much earlier than once thought.

Ratan Tatas legacy endures as a powerful source of inspiration, even after his passing. Singer and mountaineer Rina Charaniya ...