30 Rock is replacing its iconic neon lights with LEDs in the coming year. nyc.gov. The storied building is also swapping out its blue neon “Observation Deck” lettering in favor of LED “Top ...

Between 1923 and 1955, there were some 75,000 outdoor electric signs in the city, many of which were neon, according to Rinaldi. Today, only around 200 to 300 of the glowing landmarks remain in use.

Signs at 30 Rockefeller Plaza and the Apollo Theater are among the latest to lose their vintage glow in favor of LED lighting. Neon lettering on the vertical sign and atop the marquee at the ...