Credits

Who made what.

Pol-Puzzle stands on other people’s work. Thank you.

The illustrations

Each illustration was generated by an AI image model (Google’s Gemini) as a redrawing of the photograph listed below, in the style of a 19th-century lithograph. It is an adaptation of that photograph. Where the photograph is CC BY-SA, the illustration is shared under the same licence (CC BY-SA); where it is CC BY, the photographer is credited. The list covers all 190 plates.

Texts

The description of each landmark is the introduction of its Wikipedia article (English, Polish or German), reused under CC BY-SA 4.0, with a link to the article under each finished plate in the app. Wikipedia authors are credited in each article’s history.

Music

Background recordings from Musopen, released into the public domain. The soft piano notes you hear while joining pieces are synthesised in the app; their tune is the opening of Chopin’s Nocturne Op. 9 No. 2 (public domain).

• Nocturne in E-flat major, Op. 9 No. 2: Chopin, Frank Levy (Musopen)
• Nocturne in B-flat minor, Op. 9 No. 1: Chopin (Musopen)
• Étude in A-flat major, Op. 25 No. 1: Chopin (Musopen)
• Piano Sonata No. 14 “Moonlight”, II. Allegretto: Beethoven, Paul Pitman (Musopen)
• Goldberg Variations, Variation 3: Bach, Shelley Katz (Musopen)

Map

The outlines of the voivodeships come from polska-geojson by Piotr Patrzyk (MIT licence).

Photographs the illustrations were redrawn from