The Metropolitan Life North Building, also known as Eleven Madison, is a 451ft (137m) tall building in New York City. Reaching 30 stories high over an entire city block at the northeast corner of Madison Square Park, this colossal building is one of the city's bulkiest. The building, designed by Harvey Wiley Corbett and D. Everett Waid, features a classic stepped wedding-cake form with art deco ornamentation crowning each of its many setbacks.

Perhaps no other building in more perfectly embodies New York's interwar skyscraper boom as this one. Plans for a massive expansion to Metropolitan Life's existing iconic clocktower, once the tallest in the world, took form and evolved over the course of the 1920s. Construction began in 1929, raising up half of the existing building on the east side of the block facing Park Avenue. Plans were soon adjusted envisioning a 100-story skyscraper soaring around 1,300ft (400m) into the sky, making it the world's tallest building. Mere weeks later, the devastating stock market crash and ensuing depression cut down the lofty plans almost as soon as they were announced. Nonetheless, construction continued in two more phases: one to construct the northwest side of the building, and the second to complete the final southwest side. After 20 volatile years, the Metropolitan North Building was capped out in 1950 at its final, much-reduced height. Another noteworthy feature of the building was the skybridge that connected the two Metropolitan Life buildings (not included in model). The skybridge was removed in 2020 as the complex underwent extensive renovations.

Note: This model only includes the existing 1950 building. This is not a model of the never-built 100-story proposal.