The poem is of interest, however, because it's in blank verse, whereas Poe in most of his other poetry prefers to rhyme. In a couple of places, he seems to rhyme almost accidentally here (Gesthemane/Chaldee). Also, as far as I know, Poet didn't ever visit Rome--or Italy. As a youth, he did live and go to school in England, but I don't think he visited Italy then, and I'm pretty sure he didn't visit Italy as an adult, but I could be wrong. His not having actually visited the Coliseum may explain why, a few lines into the poem, he turns literal thirst into figurative thirst, so that the speaker is thirsting for lore, not for water (after having traveled a ways to see the Coliseum).
Type of the antique Rome! Rich reliquary
I do like how the Echoes insist that they and the Coliseum still matter; that's rather charming.