The saw tooth surfaces provide variety to the unit types inside and create a play of light and shadow on the building faces during the afternoon hours. The tall ground floor lobby interacts with the amenities in the linear Junction Park at the north end and contains about 10,000 sf of attractive retail in the south end at the corner of South Eads and 12th Street. The top floor amenity level includes indoor and outdoor fitness spaces and gathering spaces with a vista of National Airport, the Potomac River, Audi field, and the Washington DC monuments beyond.