reading the signal…
Signals / Object / Mapped places
in Memphis, TN·counted·1.8K all time
A tall structure carrying electrical equipment or lines, typically a steel lattice tower with crossarms.
Counted, not streamed: Power Tower 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.