Similar word to cenotaph:

cairn, cenotaph, column, commemoration, erection, footstone, gravestone, headstone, ledger, magnum opus, marker, masterpiece, mausoleum, memento, monolith, obelisk, pile, pillar, record, reminder, shrine, slab, statue, stele, stone, tablet, testament, token, tomb, tombstone, tower, tribute, witness