antenna tower, apse, arcade, arcature, arch, arched roof, archway, barbican, bean, belfry, bell tower, bend, bend back, bonnet, bow, brow, camber, campanile, cap, ceil, ceilinged roof, coif, colossus, column, concameration, concha, conk, cork, cove, crook, crown, cupola, curl, curve, decurve, deflect, derrick, embow, fire tower, flex, geodesic dome, hat, head, headpiece, hood, hook, hump, hunch, igloo, incurvate, incurve, inflect, keystone, lantern, lighthouse, loop, martello, martello tower, mast, minaret, monument, noddle, noggin, noodle, obelisk, observation tower, ogive, pagoda, pate, pilaster, pillar, pinnacle, pole, poll, pylon, pyramid, recurve, reflect, reflex, retroflex, ridge, roof, roof in, round, sag, sconce, shaft, skewback, skyscraper, span, spire, standpipe, steeple, stopper, stupa, swag, sweep, television mast, tip, top, tope, tour, tower, turn, turret, vault, vaulting, voussoir, water tower, wind, windmill tower