college's common areas include air hockey, pool, ping-pong, foosball, and a big-screen TV. A quieter atmosphere is found in Ericka's Room, a space filled with comfy couches, a TV, and board games. Ericka's Room memorializes Ericka Bishop, '97, who was killed by a drunk driver just prior to the start of her junior year in Morse. Morse has an adjacent "twin" residential college named "Ezra Stiles" which is architecturally similar and was built at the same time. The two distinct colleges share a combined dining hall, over which runs a public walkway to the Payne Whitney Gymnasium. Architecturally, Morse and Stiles differ from their predecessors by having more private space per student, and the lowest ratio of natural light aperture to wall surface of any other colleges. Morse College freshmen are housed exclusively in the historic Durfee Hall, which, built in 1871, is among the oldest buildings on Yale's Old Campus. It is known for its unique housing quarters, 80% of which are singles—the highest percentage of any freshman housing. Durfee Hall has twelve-foot vaulted ceilings, hardwood floors, at least two fireplaces per suite, and a unique walk-through suite system that allows residents access to all floors and stairwells of the building. In the 1980s, Morse freshmen lived in Vanderbilt Hall. Renovations Morse College was entirely renovated during 2009-2010. The top-to-bottom refurbishment updated the facilities of the college to meet growing student needs while preserving the design and style Morse is known for. The centerpiece of the renovation project is its new underground recreational spaces, including a theater, music practice rooms, a weaving studio, a recording studio, a digital media room, exercise facilities, and spaces for dance and aerobics. The space joins Morse with neighboring Ezra Stiles College via an underground courtyard spanned by a pedestrian bridge. The former 11,699 square feet of shared social space in Morse and Stiles swelled to 15,300 after the renovations. Pierson and Davenport, by comparison, together have 14,638. Other completed work at Morse includes an upgrade of all mechanical and electrical facilities, a new roof, new windows, updates to meet fire-safety and handicapped-accessibility codes, and air conditioning for public spaces and the Head of College's suite. Student rooms, common rooms, the gallery, game room, and the buttery have also been upgraded to accommodate the goal of Yale's residential college system as a center for social interaction. There has also been a major reconfiguration of