Only in Iceland: Descending into a volcano's magma chamber

By Anita Isalska, for CNNPublished 13th March 2014
Vivid colors fill Thrihnukagigur's magma chamber.
Vivid colors fill Thrihnukagigur's magma chamber.
Anita Isalsk/CNN
Thrihnukagigur is billed as the world's only magma chamber open to visitors.
Thrihnukagigur is billed as the world's only magma chamber open to visitors.
Anita Isalsk/CNN