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The impossible & infinite encyclopedia of the world created by Schuiten & Peeters
Welcome to Altaplana, the impossible and infinite encyclopedia of the world of The Obscure Cities, originally named Les Cités Obscures and its authors François Schuiten and Benoît Peeters.

François Schuiten and Benoît Peeters started to explore these cities in the early 1980s. In this fictional world, humans live in independent city-states, each of which has developed a distinct civilization, each characterized by a distinctive architectural style.