The late 1800s landmark was said to be "the largest and finest office building in the United States" upon its completion.

In February, New York City Mayor Zohran Mamdani pitched a seemingly fantastical proposal to President Donald Trump to place a structural deck and a 12,000-unit affordable housing complex atop the ...

The exhibition, which will remain on display at least through October, sheds light on this often-overlooked aspect of the history of tall buildings with models, diagrams, photos, drawings, and videos.

New York Times subscribers* enjoy full access to TimesMachine—view over 150 years of New York Times journalism, as it originally appeared. *Does not include Games-only or Cooking-only subscribers.