mantelpiece(shelf) noun [UK: ˈmæntl.piːs] [US: ˈmæntl.piːs]John took the framed photo off the mantelpiece and took a closer look at it. = John cogió la foto enmarcada de la repisa de la chimenea y le echó un vistazo más de cerca.
rack [racks](series of shelves) noun [UK: ræk] [US: ˈræk]
windowsill(the horizontal member protruding from the base of a window frame) noun [UK: ˈwɪn.dəʊ.sɪl] [US: ˈwɪndo.ʊ.sɪl]