tl;dr: Working here is awesome. But you wanted detail, so...
You can literally take a virtual tour of our NYC office. You seem to be particularly interested in the work environment, so you may enjoy the Google "See Inside" Street View of our NYC Headquarters. (If you're going for a full tour, note that there are 2 floors, and you can access them by clicking the "1" and "2" on the right side of the image.)
I'm not sure why anyone would want to watch videos of the likes of us, but there are a few on our page on The Muse. And most of em are literally about working here, so that may help you get some of the color you're looking for.
Our blog has a number of posts that touch on our working environment and how we do things here. Patrick Hofman already referenced two of the most relevant ones, but there are a bunch of others that touch on how we work.