1) Volcano of Iceland 
Eldgjá (Icelandic Is-Eldgjá pronunciation.ogg) is a volcano and a canyon in Iceland. Eldgjá and the Katla volcano are part of the same volcanic system in the south of the country. Eldgjá means `fire canyon` in Icelandic. Situated between Landmannalaugar and Kirkjubæjarklaustur, Eldgjá is the largest volcanic canyon in the world, 270 m deep.....