reading the signal…
Signals / Object / Mapped places
in Munich, BY·counted·351 all time
A business that accepts Visa, often displaying the Visa logo near checkout or payment terminals.
Counted, not streamed: Accepts Visa Cards 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.