There were a bunch of rays.........in an ad for apartments in Crystal City, VA..............a DC metro poster.................rays.......like the sun...........the symbol of the SI....

Crystal City

Urban neighborhood in Arlington, Virginia

Crystal City is an urban neighborhood in the southeastern corner of Arlington County, Virginia, south of downtown Washington, D.C..Wikipedia

Zip code: 22202

Population: 16,389 (2000)

Area code: 703