2026-05-19 New AI Skills - Country, City, and Landmark Image Generators
A school teacher needed hero images for a school fair: countries, cities, landmarks, the kind of thing you actually want to print and pin on a wall. I spent an afternoon turning the prompts I converged on into two reusable AI skills and pushed them to GitHub so anyone can grab them.
Canonical version: 2026-05-19 New AI Skills - Country, City, and Landmark Image Generators.
A school teacher needed hero images for a school fair: countries, cities, landmarks, the kind of thing you actually want to print and pin on a wall. I spent an afternoon turning the prompts I converged on into two reusable AI skills and pushed them to GitHub so anyone can grab them.

Repo: https://github.com/dsebastien/countries-cities-landmark-images-skills
What's in the box
Two skills, both MIT-licensed, both driving the same tiny Node wrapper around Google's Gemini 3 Pro Image (a.k.a. Nano Banana Pro):
travel-country-poster— one blended cinematic golden-hour photo per country or city, with iconic landmarks naturally fused into a single frame and the national flag billowing pole-less across the upper-left sky. Editorial travel-magazine vibe.world-landmark-globe— a hero image of planet Earth from low orbit, with 3D miniature landmarks rising from each continent at their real geographic locations.
The prompts took most of the time. The skills are the cheap part: a SKILL.md per use case, a shared CLI script (scripts/nano-banana.mjs), and a folder of example outputs so you can see what "good" looks like before you spend a cent.
Why share this
Three reasons:
- The prompts work. They survived dozens of iterations across countries with very different landmarks (Belgium, India, Japan, USA, France) and look consistent. That's the part most people give up on.
- Skills travel. Drop the folder into any Claude Code skills directory and they just work. Same skill, different agent, same output. That's the whole point of the format.
- A teacher needed it. If one teacher needed this, dozens do. Open-sourcing it costs me nothing and saves them an afternoon.
How to use them
git clone https://github.com/dsebastien/countries-cities-landmark-images-skills.git
cd countries-cities-landmark-images-skills
export GOOGLE_BANANA_API_KEY="your-key-here"
node scripts/nano-banana.mjs generate "<prompt from the SKILL.md template>" \
--aspect 16:9 --size 2K \
--model gemini-3-pro-image-preview \
--output out/paris.jpg
The CLI also supports edit (image-to-image with a reference), so you can iterate — "make the flag smaller, keep everything else" — without restarting from scratch.
Heads-up on cost. Gemini 3 Pro Image is paid. Each 2K image is cents, not fractions of cents. Don't batch a hundred countries without checking the pricing page first.
Announced here
I posted about it on X: https://x.com/dSebastien/status/2056816834767470877
If you remix the prompts for your own country/city/theme, send the result; I'd love to see what comes out.
References
- Repo: https://github.com/dsebastien/countries-cities-landmark-images-skills
- Announcement: https://x.com/dSebastien/status/2056816834767470877
Related
About Sébastien
I'm Sébastien Dubois, and I'm on a mission to help knowledge workers escape information overload. After 20+ years in IT and seeing too many brilliant minds drowning in digital chaos, I've decided to help people build systems that actually work. Through the Knowii Community, my courses, products & services and my Website/Newsletter, I share practical and battle-tested systems.
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