Local transit historian and railfan Dj Hammers makes tons of great videos showing how subway transit works and runs in the City. In this recent upload to YouTube, Dj Hammers shows the newly restored and reopened WTC Cortlandt subway station, badly damaged in 9/11 attacks and closed until now.

Almost 17 years after the Cortlandt St station was destroyed in the 9/11 attacks on the World Trade Center, it has been completely rebuilt and reopened for service. Here we see the very first trains making station stops on the opening day. Enjoy!

Visited and touched by thousands of people on a daily basis, the 2,996 etched names along the 9/11 Memorial Museum fountains need regular maintenance to retain their impact. In this video from the New York Daily News, meet the team that is responsible for making the names look their best, and see how they do it.

Workers spend the night repairing the National September 11 Memorial, armed with blowtorches and brushes.

Check out the accompanying article for more.

With the anniversary of 9/11 approaching, this week’s Op-Doc is “Footprint: Where the Towers Stood,” by Sara Newens. The film paints an intimate portrait of one day’s visitors to the 9/11 Memorial — and the ways grief, curiosity and everyday life mix and coexist. It’s a profound exploration of a public space designed to sustain and extend public memory.