STRUCTURES quiz - what is the purpose of this structure in NYC?

STRUCTURES quiz - what is the purpose of this structure in NYC?

This is the REBOOT of STRUCTURES quizzes, following a one-week hiatus for Thanksgiving.

Some people suggested a few changes, and that's what we're going to try. Rather than ask what the structure is and where its located, we're going to tell you where it is and ask if you can name it and tell why it exists... what is its purpose?

Today's structure (pictured) is located in New York City. Can you tell us its name and why it exists? As a Bonus, can you tell us some interesting things about it?

Updates
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This is The Vessel, a sculpture in New York City, built to "commission something transformational, monumental" in the mixed industrial-residential Hudson Yards area. It has a morbid history. Four people have died jumping from it in apparent suicides. Safety nets have been added, the top-most sections are now closed, individuals are not allowed (must be with someone), and it now costs $10 for a ticket; used to be free..
STRUCTURES quiz - what is the purpose of this structure in NYC?
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