The project, which has previously had iterations in Norway and Albania, comprises a station set up on the High Line with piles of white lego pieces. The public is invited to collaborate on creating a miniature city. To kick off the fun, the High Line invited ten of the city's best-known firms – BIG, David M. Schwarz Architects, Diller Scofidio + Renfro, James Corner Field Operations, OMA New York, Renzo Piano Building Workshop, Robert A.M. Stern Architects, Selldorf Architects, SHoP, Steven Holl Architects – to create one "visionary structure or construction."

Olafur Eliasson is a Danish-Icelandic artist known for large-scale, immersive installations that involve elemental materials, including light, heat, and water. For example, last year he turned the galleries of the Louisiana Museum in Denmark into a 'riverbed.' A few years ago, he gained major attention for a series of man-made waterfall structures in New York's East River. Eliasson also works in architecture often, such as with his collaboration with Henning Larsen Architects on Reykjavik's Harpa Concert Hall. Recently, he was named a recipient of the 2015 Graham Foundation Awards.

For more information on the Collectivity Project, check out the High Line's website here.