worldhood
✳SENAATINTORI60.169° N · 24.952° E
worldhood

Check out some hoods.
Then build your own.

Your starting point

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HELSINGIN TUOMIOKIRKKOHelsinki Cathedral · 1852

THE NEIGHBOURHOOD

Around the cathedral.

Two kilometres in every direction. Pick a starting point, then find your own way.

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REAL HELSINKI GEOMETRY 2 KM PLAYABLE RADIUS

MAKE YOURSELF AT HOME

Make your own way.

Start beside Olympia Terminal and follow Laivasillankatu north toward Eteläranta. Drive is the close camera; Follow and High offer a wider overview. The minimap stays north-up.

Accelerate / reverseW S or ↑ ↓SteerA D or ← →Handbrake / bike or scooter brakeSPACEGet out / get offFEnter a nearby car / rideENTERTalk to a nearby personGRun on footSHIFTReturn to your starting pointRCity mapMDrive / Follow / HighCLook left / right (hold)Q ETime of day / weatherTShow / hide extra HUDHPause / resumeESCZoomScroll or + −

Share the streets with moving cars and pedestrians. Traffic follows mapped road directions, with simulated signals and following distances. Buildings, water and other cars stop your car. Harbour details are photo-guided approximations; see the harbour reference ledger. This is a single-player city playground. Marked bicycles and scooters are available near each starting point.

BUILT ON THE REAL CITY

Helsinki, from Helsinki.

Streets follow surveyed polygons. Most buildings retain municipal 3D geometry and photographic façade textures; the cathedral, its pavilions, Government Palace frontage and five key Kauppatori building frontages have photo-guided geometric reconstructions. Kauppatori uses mapped paving and photo-positioned market canopies. Trams follow a dated HSL route snapshot, including shared streets and crossings.

A prototype, not a survey-exact digital twin. Street terrain is flattened; landmark stair heights, ornaments, landscape inference and some façades remain approximate. Market monuments are simplified silhouettes; rear façades and some source texture gaps remain. Tram rails follow route shapes, not surveyed rail centres. Switches, overhead wires, stop matching, traffic priorities and timings are simplified; this is not live HSL tracking.

Helsinki 3D ↗HSL open data ↗Senate references ↗Kauppatori references ↗Tram references ↗Data provenance ↗CC BY 4.0 ↗

Geometry, photographic textures and maps © City of Helsinki, City Survey Services and Urban Environment Division. Routes and stops © HSL 2026 (16 September snapshot). Adapted under CC BY 4.0. Granite Tile 03 material by Poly Haven, CC0. Reference photographs are credited in the architecture manifests and are not embedded in the landmark models.