Photo credits

Skyline of Warsaw.jpg

Xtumech · CC BY-SA 4.0

CC BY-SA 4.0 · Resized and converted to WebP; cropped by CSS.

DerHexer · CC BY-SA 3.0

CC BY-SA 3.0 · Resized and converted to WebP; cropped by CSS.

No machine-readable author provided. Michał Oziębło assumed (based on copyright claims). · CC BY 2.5

CC BY 2.5 · Resized and converted to WebP; cropped by CSS.