NYC: Bulk and Slab

https://en.wikipedia.org/wiki/30_Rockefeller_Plaza 850

https://en.wikipedia.org/wiki/28_Liberty_Street 813

https://en.wikipedia.org/wiki/MetLife_Building 808

https://en.wikipedia.org/wiki/One_Penn_Plaza 751

https://en.wikipedia.org/wiki/55_Water_Street

https://en.wikipedia.org/wiki/1221_Avenue_of_the_Americas 674

https://en.wikipedia.org/wiki/1_New_York_Plaza ,
http://wirednewyork.com/skyscrapers/one-new-york-plaza

The North Building was designed in the 1920s by Harvey Wiley Corbett and Dan Everett Waid^[3] as a 100-story skyscraper that would have been the tallest building in the world. However, due to the Stock Market Crash of 1929 and onset of the Great Depression, the construction was halted at floor 29 in 1933.^[4] Metropolitan Life had originally planned to have a 100-story tower, and the existing building was constructed to be strong enough to support extra floors. Still, when construction was completed on the 25-story "base" in 1950, there were no plans to build the extra stories
https://en.wikipedia.org/wiki/Metropolitan_Life_North_Building
The building, which has 2,200,000 square feet (200,000 m²) of space,^[3] was constructed in three stages,^[3] and was finally completed in 1950. It is finished on the outside with Alabama limestone and marble detailing, and marble in the lobbies. The building features four vaulted corner entrances,^[5] and its bulk is mitigated by numerous setbacks^[3] and its polygonal shape.^[5] The building contains 30 elevators, enough to serve the originally-planned 100 floors.