Joe Macken began the project 21 years ago -- devoting time to creating a handmade representation of New York City.
The model spans 50-by-27 feet and is comprised of 320 individual sections made of everyday materials like balsa wood, cardboard and glue.
The portrait showcases the city's skyline, neighborhoods, and landmarks with precision and imagination.
His model will be installed at the Museum of the City of New York, steps away from permanent exhibitions "New York at its Core" and "Timescapes."
The exhibit titled, "He Built This City," opens on Thursday at the Museum of the City of New York.
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