Spotting shapes in clouds is a delightful way to pass a lazy afternoon. There's even a society dedicated to cloud spotting. It’s called the Cloud Appreciation Society, founded by Gavin Pretor-Pinney to...
The Eisriesenwelt (German for "World of the Ice Giants") is a natural limestone ice cave located in Werfen, Austria, about 40 km south of Salzburg. It is the largest ice cave in the world extending more...
A glacier cave is a cave formed within the ice of a glacier. Glacier caves are often called ice caves, but this term is properly used to describe bedrock caves that contain year-round ice.
Most glacier...