12. The Jefferson Market Library at 425 Sixth Ave, Manhattan

Though at first glance the Jefferson Market Library building doesn’t ressemble a wedge shape as much as the others, it has a mostly triangular construction and what would be its “point” is a rounded edge that becomes the clocktower.

According to the New York Public Library, the 1877 building was originally a courthouse and was designed by Central Park architects Frederick Clark Withers and Calvert Vaux. There was a civil court, police court, holding cell for prisoners in the basement, and the tower served as a firewatcher’s viewpoint. It was almost knocked down in 1959 to make way for apartment buildings, but the Greenwich Village community rallied and it was turned into a library instead by Mayor Robert F. Wagner in 1961.

Untapped Cities offers annual climbs up the Jefferson Market Library Clocktower, become an Untapped Cities Insiders to get notified of future dates. The library will be undergoing three months of interior construction, so the next climb will likely be late summer.

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12 thoughts on “14 of NYC’s Triangle Buildings: A Brief History

  1. 1 Wall Street Court, formerly the Beaver Building/Cocoa Exchange. 82-92 Beaver Street. Financial District

    47 Plaza Street West, 47-61 Plaza Street West, Park Slope, Brooklyn

    The Shenandoah, 10 Sheridan Square, West Village

    I *think” I may have seen photos of at least one somewhere in upper Manhattan (Fort George, Hudson Heights, Inwood), but I can’t find any at the moment!

    1. Yes, we were thinking about it! We were worried people were going to say it was not technically triangular with a flat front and back. But we can add it!

    1. umm…There is a photo of the whole building on the top of the article on the same page! The roof is show an alternative, “untapped” view because the roof is off-limits usually. But we’ll switch it up anyway.

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