All Tube Stations Have Fifteen Floors
Overview
Geoff Marshall explains a running gag about London Underground stair signs claiming that the climb equals 15 floors, regardless of how many steps there actually are.
On Hacker News
Cited as the explanation for the oddly inaccurate tube staircase signs, and as an example of Marshall's station-detail videos.
Topics
Sources
Video by Geoff Marshall, played through YouTube.
Data and selection notes
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HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.
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Selection checks
- SaaS & AI candidates: Topic keywords do not match
- Editor-approved picks: Editorial review is required
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