reading the signal…
Signals / Object / Street-level imagery
in Mannheim, BW·counted·19 all time
A greenhouse is a transparent structure for growing plants, typically framed with glass or plastic panels.
Counted, not streamed: Greenhouse 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.