landmark Synonyms

watershed turning point vestige udometer telemeter stethograph stage souvenir signpost significant signal sign sight seamark remnant relic radiometer watchtower direction post waymark boundary marker waypost land mark normative megalithic densitometer breakthrough lightship sights guiding light reference point benchmark bench mark groundbreaking coign promontory pneumatograph indicator historic headstone guidepost gravestone guide feature event crisis cheviot centumvirate cairn boundary