Thríhnúkagígur is a volcano near Reykjavík in Iceland with an empty magma chamber decorated with viv...
Thríhnúkagígur: The only volcano on Earth where you can descend into a magma chamber
Thríhnúkagígur is a volcano near Reykjavík in Iceland with an empty magma chamber decorated with vivid colors that scientists and tourists can access via an...
Author: Live Science
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