Texas tower, beacon, belvedere, bench mark, bleachers, bookmark, bridge, cairn, catstone, conning tower, gallery, gazebo, grandstand, landmark, lighthouse, lightship, lookout, loophole, mark, marker, menhir, milepost, milestone, monument, observation post, observatory, outlook, overlook, peanut gallery, peephole, platform, ringside, ringside seat, seamark, sighthole, top gallery, tower, watchtower