Instant Cities

Instant Cities BETA

Take a virtual 3D tour of famous cities, then explore them yourself by bike, on foot or even on horseback.

Ride through old towns from Bruges to Rome and Istanbul, and on to New York, with every street and building from OpenStreetMap at its real height. Play free in your browser, with nothing to install.

Play: Paris Play: Rome Pick a city Watch a tour

Free · no account · works on PC, tablet and phone

Preview: Ghent

An experiment vibe-coded with love by Wouter & Julia using Claude Opus, OpenAI Sol, three.js, OpenStreetMap and Mapillary.

Pick a city

All cities →

In every city

The real old town

Explore each city’s historic centre, rebuilt in 3D from OpenStreetMap with every building at its height, past its squares, churches and canals.

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Bike, foot or horse

Ride or race a bike, run on foot or gallop on a horse. Or pick a cow, a tiger, a pig or a unicorn: they are all equally fast and strong.

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Races, quests and tours

Race along real streets, beat short missions against the clock, sit back for a guided 3D tour past the sights, or just ride about and look around.

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About the project

Instant Cities is an open source project with one aim: to bring a city to life on your screen with as low a barrier as possible. You open a link and you are riding through its streets, with nothing to install, no account and no fast computer needed.

Every city is built from OpenStreetMap and drawn with three.js in the browser, and AI writes most of the code. The code is on GitHub for anyone to read, use and improve.

More about the project Code on GitHub

Ready to go?

Or pick another city · Still in development: expect some rough edges.