← Archive · 2026-07-02

Case: Rhône quay near Place Lamartine, Arles, France

Image: Starry Night Over the Rhône by Vincent van Gogh, Google Art Project image via Wikimedia Commons, Public Domain. · source

The answer

Rhône quay near Place Lamartine, Arles, France · FR · 1880s

How the AI detective did

The AI placed its guess 28 km from the real location (it guessed West bank of the Rhône toward Nîmes, France).

Starlit water and gas lamps on a southern French quay — but my pin lands across the river toward Nîmes and I misread the lamps as early electric, dating it 1908.

The evidence the AI read

• terrain: A broad river bends through a compact town, with reflected gaslights stretching across the dark water. — The pin should sit on an urban river quay rather than on an open coast or rural lake.
• architecture: Low riverside buildings and a bridge sit under a Mediterranean-looking night sky. — This points to a southern European town with a navigable river crossing.
• era_marker: The brushwork, gaslight reflections, and post-impressionist handling feel late nineteenth century. — An 1880s answer is more plausible than a twentieth-century or contemporary scene.
• climate: The warm-night palette and open quay suggest a mild river city rather than a cold northern waterfront. — A temperate-to-Mediterranean river setting is the strongest read.

Think you can out-read the AI? Play today’s case →