interior renovations began in 2016, while similar work was underway at Holy Cross Hall. Architecture Main Building is a roughly rectangular four-story hall, clad with local white limestone on its northern facade, with a central bell tower projecting several stories higher from the rear. The building is divided into three sections: two taller and bulkier wings on the east and west, and a more narrow central segment joining them, totaling a footprint. Main Building exemplifies the Collegiate Gothic architecture that was popular among educational institutions in late-nineteenth-century America, with its protruding one-story church porch, tall lancet windows with hood molding, and turreted buttresses. Main facade The main entry is in the center of the north facade, where a flared staircase leads up to the porch and red double doors framed by a Gothic arch with hood mold and pointed gable. Above the entrance the facade is marked by a central bay, which projects slightly forward and frames three columns of windows with another hood mold and gable, matching those on the facing of the porch. Each level of the central segment has its own style of windows: the first floor has trios of pointed-arch windows with hood molding, while the second has trios of simple rectangles, and the third has a series of small lancet windows with hood molds. A line of dentils follows the roofline, including under the high gable of the central bay. The east and west wings of the building project forward relative to the central portion, and their steeply pitched rooflines extend upward another story above the center. The north face of each wing is divided into three vertical bays by four buttresses, two on the face of the structure and two at the corners; the corner buttresses extend above the roofline to form cylindrical turrets topped with conical spires. Each bay on the wings duplicates the pattern of windows from the central facade, but the wings' central bays and gables extend higher than the corresponding bay above the main entrance. Other features The central tower rises from the rear of the building, its lower levels protruding from the south face. The first four stories of the tower are round and embedded in the building, supported by two heavy limestone buttresses. Near the roofline, a ring of blind arches forms a transition to a freestanding octagonal upper section; only this upper portion is visible from the