The Washington Post has a special feature called Antarctic Voyages. One of the images is an ice tower on Erebus formed from steam from a fumarole. I hunted around and found a similar picture. Nature is amazing. Here's the link to the Post feature; registration probably required if you aren't already. It's got audio; the image that caught my eye is available as a desktop wallpaper under "Downloads". Opening the link below triggers a sound effect (strong winds). Antarctic Voyages The actual image is here; I don't know if this will open if you aren't registered. http://www.washingtonpost.com/wp-srv/science/interactives/antarctica/wallpaper_01.html