“The shadow of the dome of pleasure
Floated midway on the waves;
Where was heard the mingled measure
From the fountain and the caves.”

Kubla Khan (1797 or 1798)
Context: A damsel with a dulcimer
In a vision once I saw:
It was an Abyssinian maid,
And on her dulcimer she played,
Singing of Mount Abora.
Could I revive within me
Her symphony and song,
To such a deep delight 'twould win me,
That with music loud and long,
I would build that dome in air,
That sunny dome! those caves of ice!
And all who heard should see them there,
And all should cry, Beware! Beware!
His flashing eyes, his floating hair!
Weave a circle round him thrice,
And close your eyes with holy dread,
For he on honey-dew hath fed,
And drunk the milk of Paradise.

The Raven (written as a counterpart to Poe's poem by the same name).
Bartlett's Familiar Quotations, 10th ed. (1919)

Vaghe Ninfe del Po, Ninfe sorelle,
E voi de' boschi e voi d'onda marina
E voi de' fonti e de l'alpestri cime.
Rime d'amore ("Rhymes of Love"), 175.

Song - I pray thee let me weep to-night
The Venetian Bracelet (1829)

Stanza 18.
The Raven (1844)

From the Hills of Dream, reported in Bartlett's Familiar Quotations, 10th ed. (1919).

Kubla Khan (1797 or 1798)
Source: The Complete Poems