reading the signal…
Signals / Object / Street-level imagery
in Moscow, MOW·counted·71 all time
A window frame is the structural border surrounding glass, commonly visible as part of a building exterior or interior.
Counted, not streamed: Window Frame has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.