It was once the tallest building in the world. Today its presence on New York City's skyline remains unmatched. The nearly century-old Empire State Building is an intricate ecosystem having undergone a complete modernization both inside and out.

The Twin Towers were icons on the New York skyline. Then in the course of one September morning they were gone. What followed was more than two decades of competing visions and continual setbacks that finally culminated in the city’s newest landmark.

Pigeons and New Yorkers: it's a relationship that dates back centuries and like most New York City relationships... it's complicated. Some hate them while others can't get enough of them. But who's right?

New York’s Harbor is as large as it is complex home to six container terminals that move millions of pounds of cargo every day.

New York's skyline is constantly changing as the city continues to build up. But building here comes with its own particular set of challenges: confined spaces subways and a general lack of land. It's a task New York's construction workers and architects are particularly well-trained to face.

New York City has the best food. But getting all that grub to New Yorkers is no easy task. Most of it comes from one critical point in the Bronx: the Hunts Point Distribution Center. Each year 4.5 billion pounds of food makes its way to the city's restaurants food stores and Bodegas.

New York City’s Fire Department boasts prestige and pedigree. The department leads the world for innovation but it is also shaped by tragedy. Fueled by preparation coordination and bravery the FDNY makes it safer for New Yorkers to be New Yorkers.

New York City is the heart of America’s train system.At its center stands Grand Central Terminal. The station’s Beaux-Arts style has attracted both tourists and commuters alike for over a century. But keeping it all on track requires hundreds of conductors station managers and rescue workers.

New York might have America’s best public transit systems but its roads are just as important. Each day the city plays host to an intricate dance of pedestrians cyclists and vehicles. Keeping it all running smoothly takes grit street sweepers thousands of cameras and a whole lot of asphalt

New York has a whole lot of trash, but did you know that half of it is recyclable? While NYC might not be the best at it, its system is state of the art - from facilities processing New Yorker's bottles and cans to a brand new composting movement to a community that relies on the system to survive.