Did you know the Javits Center in Hell's Kitchen has a massive green roof, with wild grass, plants, birds and other natural life all forming a perfect, midtown nature sanctuary? Check out the impressive and unconventional rooftop in this report from CBS's correspondent Jim Axelrod.

Directly above one of New York City's busiest buildings lies a sanctuary of sorts, a green space that is both harboring wildlife and saving energy.

Today we'll share 7 Secrets Every New York City Tourist Needs To Know!

Hey, batter batter! Michael Wyetzner of Michielli + Wyetzner Architects returns to AD, this time breaking down the architectural details found in baseball stadiums around North America. From some of the earliest homes of the national pastime to current multi-billion dollar behemoths, Michael offers up expert insight on what makes each of them distinct.