Which word is similar to landmark?

Words similar to landmark depend on whether you mean physical landmark or figurative landmark, but many synonyms capture its meaning of prominent reference point and significant milestone. For physical landmarks used for navigation and geography, similar words include monument, marker, beacon, reference point, guidepost, signpost, waypoint, milestone, icon, and point of interest. For example, the Eiffel Tower is a monument and icon that serves as a landmark for Paris. In tourism, similar words include attraction, tourist attraction, must-see, and famous site. For natural landmarks, similar words include natural wonder, natural monument, and geographic feature. Figuratively, for landmark meaning important event or turning point, similar words include milestone, turning point, watershed, breakthrough, historic moment, defining moment, and milestone achievement. In law, a landmark case is similar to precedent-setting case. In urban planning, similar words include focal point and skyline feature. So which word is similar to landmark depends on context, but most direct synonyms are monument for physical structures, milestone for events, and reference point for navigation. Thesaurus lists beacon, marker, and touchstone as similar. The word landmark itself comes from Old English landmearc meaning boundary marker, so marker is closest etymological synonym. So similar words include monument, marker, milestone, beacon, and icon.