What building was built earlier,  Manhattan Life Insurance Building or 15 Penn Plaza?
Manhattan Life Insurance Building The Manhattan Life Insurance Building was a 348 ft tower at 64-66 Broadway in New York City completed in 1894 to the designs of the architects of Kimball & Thompson and slightly extended north in 1904 making its new address 64-70 Broadway. It was the first skyscraper to pass 100 m in Manhattan.
City View (Pittsburgh) City View is a 300 ft (91m) highrise in Pittsburgh, Pennsylvania. It was completed in 1964 and has 24 floors. It is tied with the Commonwealth Building and The Carlyle for the 26th tallest building in Pittsburgh. It was designed by I.M. Pei. From its inception in 1964 until 2014 it was known as "Washington Plaza".