Which building, Olympic Tower or Latting Observatory, is no longer erect?
Olympic Tower: Olympic Tower is a 51-story building in Midtown Manhattan, in New York City on Fifth Avenue. Latting Observatory: The Latting Observatory was a wooden tower in New York City built as part of the 1853 Exhibition of the Industry of All Nations, adjoining the New York Crystal Palace. Latting Observatory:  The tower, taller than the spire of Trinity Church at 290 ft , was the tallest structure in New York City from the time it was constructed in 1853 until it burned down in 1856.
Latting Observatory