That's basically the whole story, as reported by the AP. We actually sat on the train that is, indeed, completely wrapped with an ad for a history channel show that delves into the "underground" — and we don't mean like, trendy underground.

The series is called "Cities of the Underworld" — so it's fitting that the wrapped subway was the "medium" chosen for this spot. We're hoping that the "ad space" sell offsets the apparent shit-fit the Metro Transit Authority is having — because even though they jacked subway prices way up not too long ago, they're apparently still heading toward financial doom ala Wachovia, WaMu, the US etc. Great.

I didn't grab a photo of it because I was crammed into the train so hard I couldn't even reach my phone. I'll try to get one on the way home — it's definitely worth seeing. As far as we know, this was BBH's doing.

Note to media buyers: contact the MTA and buy some friggin ad space. Save the subway!

More photos after the jump. (Photo cred: Sam Chase for HISTORY — and many thanks to HISTORY's PR rep Heather DiRubba)