Man who worked in mysterious 29-story windowless skyscraper in New York City describes what it’s like inside

A man who claimed to have worked in the building has revealed all (Roy Rochlin/Getty Images)

According to a TikToker, the building ‘has enough gas, water and electricity to be able to continue running independently for up to two weeks and is supposed to be able to actually withstand a nuclear blast… within reason’.

However, despite this knowledge, people have come up with their own wild predictions as to the building’s use.

One theory has suggested that the building is some sort of nuclear shelter – which seems a pretty wild conclusion even for conspiracy theorists.

While another theory is that it’s a supposed listening post for the National Security Agency (NSA), called ‘Titanpointe’ – with an investigation by The Intercept claiming that parts of the building were dedicated to surveillance.

However, until anyone tells us otherwise, the simplest explanation is probably the correct one in that the building is, in fact, used for telephone interchange.