This ominous windowless skyscraper looms over Tribeca, defying all architectural norms.

The Brutalist facade conceals a mysterious purpose - why are there no windows? Behind the heavy concrete walls, an even darker truth lurks.

For decades, New Yorkers scratched their heads about the building's function. Rumors swirled about government secrets and espionage hidden within.

Thanks to brave whistleblowers, we now know the truth. This impenetrable fortress covertly houses a sophisticated NSA surveillance operation.

AT&T willingly partners with the spy agency, jeopardizing American privacy. Together, they analyze mountains of data - your phone calls, emails, internet history.

No warrant needed. The NSA analyzes communications from all over the world, searching for suspicious activity. But they capture way more than they should.

Tour the NSA's covert listening post with us. Learn the full, chilling backstory behind New York's most secure skyscraper. Question if "national security" still warrants unchecked spying on Americans.