
The elaborate geometric structure was inspired by ancient Indian stepwells.

The bottom of the structure measures 50 feet (15 meters) but widens out to 150 feet (46 meters) at its top.

It consists of 152 interconnecting flights of stairs, 2400 steps and 80 landings in total.

It is part of the wider $25 billion Hudson Yards project.

Stephen Ross, (left) Chairman of Related Companies, talks with Thomas Heatherwick, the designer of the "Vessel" sculpture, at Hudson Yards, Wednesday, Sept. 14, 2016 in New York.


