Journey to the Centre of the Earth

Jules Verne's novel of 1864 on a real map: about 8,300 km.

From Professor Lidenbrock's house in Hamburg to Iceland, down the crater of Snæfellsjökull, past a forest of giant mushrooms and across the underground Lidenbrock Sea, and out again on a column of lava from Stromboli in Italy. The whole underground stretch is walked in a tunnel. 13 stops, 5 facts, 3 dangers: thirst, sea monsters and an eruption.