Abyss, Adit, Airway, Arch, Arrow, Arrowhead, Baluster, Balustrade, Banister, Bank, Barb, Barrel, Barrow, Base, Beam, Belfry, Bolt, Brass, Bust, Cairn, Campanile, Cavity, Cenotaph, Chasm, Cilium, Colliery, Colonnade, Colossus, Column, Crater, Crevasse, Cross, Cup, Cupola, Cut, Dado, Dart, Deep, Depth, Derrick, Die, Dig, Diggings, Dolmen, Dome, Duct, Excavation, Filament, Flight, Flue, Gleam, Grave, Gravestone, Gulf, Handle, Headstone, Ventilator, Volley, Well, Workings, Hole, Hollow, Inscription, Jab, Jack, Knock, Lantern, Lighthouse, Louver, Marker, Mast, Mausoleum, Megalith, Memento, Memorial, Menhir, Minaret, Mine, Monolith, Monument, Mound, Nostril, Obelisk, Obituary, Pagoda, Pedestal, Pencil, Pier, Pilaster, Pile, Piling, Pillar, Pinnacle, Pit, Plaque, Plinth, Pole, Post, Potshot, Prize, Pylon, Pyramid, Quarrel, Quarry, Quill, Ray, Reed, Reliquary, Remembrance, Ribbon, Rod, Screw, Screwing, Shank, Shoot, Shrine, Skyscraper, Spire, Staff, Stalk, Stanchion, Stand, Standard, Steeple, Stem, Stick, Sting, Stone, Streak, Tablet, Testimonial, Thrust, Tomb, Tombstone, Tour, Tower, Transom, Trophy, Trunk, Tunnel, Turret, Upright, Vent