May 20, 2013
Thrihnukagigur Volcano, Iceland
Photograph by Iurie Belegurschi, Your Shot
An open-air basket elevator ferries adventurous tourists down into Thrihnukagigur volcano in Iceland. Thrihnukagigur, about 15 miles from Reykjavik, is the only place on Earth where you can enter a magma chamber. The volcano last erupted about 3,000 years ago and now contains only ancient magma—though it could come back to life at any time, experts say.
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