Artificial island · 1895
Propeller Island
Standard Island is a 27 km² self-propelled steel platform carrying a French string quartet and the 10,000 residents of Milliard City through the Pacific.
The quartet discovers that the apparent Californian ground is moving out to sea.
Verne’s Madeleine Bay corresponds to Magdalena Bay on the Pacific coast of Baja California Sur, Mexico. Standard Island departs from there into the open ocean.
AI image generation · reconstruction from Verne’s text, 2026Verne says
Could a steel city cruise the Pacific?
Verne builds the island from thousands of watertight boxes, two power stations, twin ports, and enough machinery to propel the entire structure at eight knots.
Fact-check
Verne predicts catastrophic structural failure
Today’s largest floating facilities are tiny beside Standard Island and stay anchored in place. Verne’s opposing propellers impose enormous bending loads until the connected caissons pull apart—a credible failure mode for such a structure.
The book in pictures
Original plates and later editions show how each generation pictured the same journey.



