Located right in the heart of midtown Manhattan, Bryant Park is more than just the fashion guru’s holy land. It is also home to what just might be the world’s most environmentally-friendly office high rise.

One Bryant Park is a LEED platinum rated high rise office building. It features a unique architectural design, which, along with full-length double glass windows, makes maximum use of natural light and prevents harmful UV exposure.

The building collects storm water and uses for a number of purposes, including landscape irrigation and water for restroom toilets. Electrical needs are met by light-sensing technology that dims electrically powered lights when sunlight is brightest, as well as an onsite cogeneration plant that provides 5.1 megawatts of energy to the office building. During non-business hours, a thermal systems generates ice, which is then used to cool air and circulate it through the offices. An air circulation system measures the amount of carbon dioxide present and adjusts to take in fresh and release stale air.

One Bryant Park houses many firms, real estate investment firm Marathon Asset Management among them. Marathon's leadership considers the company's move into One Bryant Park as a component of its many efforts to operate in a sustainable and socially conscious way.