A dragon-slayer's hoard, two queens quarrelling at a cathedral door, a murder at a spring, and a revenge that takes thirteen years: the medieval epic of the Nibelungs is the great German tale of betrayal. Its first half is set around Worms on the Rhine, its second ends at the court of Etzel, king of the Huns.
This route follows the story from Siegfried's home in Xanten to Worms, to the Odenwald, and then east along the Danube to Tulln and Pöchlarn. Several sites are local traditions, not proof; the poem itself is vague about most places.
In May 1863 a Hamburg professor of mineralogy decodes a 300-year-old note in runes: go down the crater of Snæfell in Iceland and you will reach the centre of the Earth. Within days he drags his reluctant nephew Axel north by train, steamer and schooner, hires a silent Icelandic guide named Hans and climbs into the volcano.
Verne sets up the impossible with a timetable you could almost follow today — Altona station, Kiel, Copenhagen, Reykjavík, the hamlet of Stapi below the glacier. What happens underground is pure fiction, but the way out is real: three months later the travellers are spat out of Stromboli, an island volcano off Sicily, more than 3,000 km from where they went in.