This episode follows life at Penn Station NYC. 700,000 passengers a day pass through the station making it the busiest in the Western Hemisphere. But there are plans to make it even bigger as the station is currently undergoing a multi-billion dollar revitalisation and railroad infrastructure reconstruction.

With unprecedented behind-the-scenes access to the World's Busiest Stations, this series buys a unique first-class ticket to the secret life of the station. It follows station staff, train drivers, track maintenance crews and transport police as they battle through human drama, travel disruption and engineering challenges to keep trains on time and passengers on track.

Open 24 hours a day these amazing institutions are places of noise, colour and stunning architecture, but they are also symbols of their country - a window into the culture and history of their city and to the stories of those who live there and pass through.

Fort Tryon Park is a 66 acre park established in 1935 that sits at the Northern tip of Manhattan's Washington Heights neighborhood and also houses the grounds for The Met Cloisters museum. In these vintage photographs from the Met, check out what Washington Heights looked like before the Cloisters and Fort Tryon Park.

Washington Heights—the neighborhood in northern Manhattan that houses The Cloisters museum and gardens—is built upon a series of bluffs and cliffs. Concrete staircases and creaky subway elevators connect different sections of the neighborhood, and buildings stand tall on stilts driven deep into Manhattan schist. […] However, despite its once-impenetrable terrain, or maybe because of it, Washington Heights is a place where some of the wildest and most romantic medieval-architecture fantasies in New York City have been realized for over 150 years.

Check out the accompanying article for more info on the castles in the photos.

In a recent mini-documentary titled Your Train is Delayed. Why? from the New York Times, visial journalists Ora DeKornfeld and Alexandra Garcia set out to investigate the current state of delays in the City, how we got here, and how we can fix it. It's a short 10-min watch and a great overview of the MTA's current transit crisis.