How to play
- Goal
- Know the world’s bridges: their appearance, locations, crossings, main spans and opening years.
- How it ends
- Bridge Line ends on the third mistake or when its collection runs out; other competitions end after ten questions, placements or pairs.
- Record
- Most correct answers, then fastest answering time; Span Reserve keeps the most reserve, and Matching the fastest time with penalties, separately for each competition and collection.
- Bridge Line: place bridges by their longest individual main span, longest at the top. Three mistakes end the run. Span Order scores ten placements; overlapping accepted ranges tie.
- Opening Order: place ten bridges by the year the pictured structure opened to intended traffic. Reconstruction dates are identified where relevant.
- Photo: identify a bridge from eight names; ten questions. Countries and Crossing ask for one of six supported answers.
- Span Reserve: estimate ten main spans from 1,000 points. Inside the accepted range costs nothing; outside it, loss grows with distance to the nearest edge.
- Matching Table: match ten names and photographs. Each incorrect pair adds three seconds.
- Choose a collection and competition. On ordering tables, choose a gap, then press Place here or press the same gap again. Preview runs are practice only.
Controls
| Tap / click | Choose an answer or pair; select a gap, then confirm with Place here |
|---|---|
| 1–8 | Choose a quiz answer |
| Arrow keys · Enter | Move between choices and confirm |
| H · R · Escape | How to play, restart, return |
Tips for Bridge Atlas
- Compare the main span Use the longest individual main span, rather than the total bridge length, height or clearance.
Questions about this game
Is this the complete game?
This is the first practice preview: 40 photographed bridges, with broader content in development. Rankings are not enabled.
Why are some competitions unavailable?
Each competition needs enough independently reviewed facts and distinct choices for a full run. Facts qualify separately from photographs.
Why are some measurements ranges?
Independent source accounts can report slightly different measurements of the same span. Reviewed agreements within 15% can play as a range. Estimates inside that range cost nothing.
Individual photograph creators, licences and source changes are linked in the game. Span and opening facts use separately reviewed source accounts. Context maps: Natural Earth, public domain. No ads, SDKs or analytics inside the game. Backdrop: Golden Gate Bridge photograph by Supercarwaar, CC BY-SA 4.0, via Wikimedia Commons. Gameplay cover: Øresund Bridge photograph by Nick-D, CC BY-SA 4.0, via Wikimedia Commons, presented in the game interface.
About Bridge Atlas
Try the first 40 reviewed bridge photographs, including 25 familiar landmarks. This practice preview introduces photo recognition, span and opening-year ordering, countries, crossings, estimates and matching. More content is in development.
Photographs and facts qualify separately. The current set has 19 reviewed main spans, 12 opening years, 33 country assignments and 21 crossings. Map mode is unavailable until enough locations are reviewed. Preview results stay in your browser; rankings are not enabled.
