Radio transmission waves or zigzag electricity designs resembling lightning bolts were used extensively by the Radio Corporation of America, better known as RCA. They appeared in their logo, marketing and as an architectural motif at their previous building at 570 Lexington Avenue. In 1933, when they moved to the General Electric Building, which today is nicknamed 30 Rock, they had artist Lee Lawrie create this sculpture of Zeus from limestone and glass. The art is above the Rockefeller Center plaza entrance. The words are an excerpt from the Bible’s Book of Isaiah.