This is 99% invisible. I'm Roman Mars.

I am walking down 106 Street towards Manhattan Avenue.

I can see the building in distance.

That's producer Jessica Miller wandering around her old neighborhood.

Oh yeah! So you can see on the back of this tower there's like a smoke stack.

Or at least the remnant of a smoke stack.

Jess used to live near Central Park and she's been walking by this building and wondering about it for a long time.

So she met up with Jim Rassenberger who's done some writing about the building for the New York Times.

Hey, are you Jim?

Yes. Hi, how are you? Nice to meet you.

The address of the building is 455 Central Park West and it looks like a castle.

It's huge. It takes up the whole east end of the block.

It's made up of red brick with this intricate stone trim and it's got five or so large cylindrical turrets

with silver cones on top. It's gigantic.

Gigantic. I was going to say ginormous.

You could say ginormous.

The building looks like something out of a fairy tale.

Like Rapunzel could let down her hair through one of the turret windows for some night and shining armor

who just wandered over from Central Park.

But what I found out is that this building's past is not very fairy tale like at all.

Do you want to like just take a walk around the building and see what we see?

I saw coming up around this side. There are these things that look like smoke stacks,

...