lobby entrance that leads to the Arch Street Presbyterian Church adjacent to the tower. The exterior lighting scheme of the building was designed by Quentin Thomas Associates, and consists primarily of white LEDs color-temperature matched to the fluorescent lights used by the interior. Along each floor, the corner spandrel panels feature upward and downward-facing 4,100K LEDs to create the appearance that the length of the building has been bottom-lit by spotlights. The only major consistently active color element can be found at the top of the tuned mass damper; a single row of color-changing LEDs that is programmed to commemorate special events. For example, the top would be colored pink for Breast Cancer Awareness Month. Philadelphia Inquirer architecture critic Inga Saffron described the Comcast Center as "a respectable work of architecture" that was "dignified in its stance on the grid, generous in its relationship to the city, responsible in its treatment of the environment". She felt the tower's shape reminded her of a giant flash drive. Saffron said the building excelled at the street level, praising the plaza, concourse, and its connection to Suburban Station. In 2009 the Comcast Center was awarded the Urban Land Institute Award for Excellence in the Americas category for the transformation of what was once mostly a vacant lot into a transit gateway. Art The Comcast Center's winter garden entrance contains two works of installation art. The "Comcast Experience" LED animation display The Comcast Experience is a tall, wide, high-definition LED screen situated on a wall in the winter garden. The screen is composed of 7.8 million, 4.66mm pitch pixels housed in 6,771 LED modules of the type used in the Barco NX-4 panel. The installation, designed and produced by Niles Creative Group, premiered on June 6, 2008, and runs eighteen hours each day. The content of the video includes panoramic views of Philadelphia historic sites, images of space, dancers, acrobats and actors moving around a background designed to mimic wood paneling of the walls of the lobby. Another part of the installation displays images of cranes and machinery forming the design of a clock that tells the correct time of day. The Comcast Experience quickly became a popular tourist attraction, prompting city officials to add the Comcast Center to its tourism website. Between Thanksgiving 2008 and New Year's Day 2009, a holiday video was included as part of the installation. Humanity in Motion statuary