In 2007, Steven Hall finished the Bloch addition to the Nelson-Atkins Museum of Art in Kansas City, Missouri. In 2007, Time magazine ranked the museum’s new Bloch Building number one on its list of “The 10 Best (New and Upcoming) Architectural Marvels” and it considers places from all over the world. Steven Hall won the international competition for the design and his plan was to build five glass pavilions to the east of the original building which they call lenses. The lenses top a 165,000-square-foot underground building known as the Bloch Building. The addition cost around $95 million. The design for the new addition utilizes sustainable building concepts such as green roofs to achieve high insulation and control stormwater. Also, the double-glass cavities of the lenses gather sun-heated air in winter or exhaust it in summer. Hall built this addition in a way to not upstage or block the existing build.