On Saturday, people were welcomed into the newly renamed WTC Cortlandt station as the first train rolled in at midday. Nearly 3,000 people died and thousands more were injured in the 2001 attack.

The new fully accessible station, which cost $181.8 million (£140.7 million) according to the New York Times, required an entirely new ceiling to be built and 365 metres (1,200 ft) of the track to be replaced.

It now boasts state-of-the-art technology, like a new air ventilation system to keep the platform cool, and fewer columns to help with passenger flow.

Credit: AFP