Pavilion: Based on 'Ode on a Grecian Urn'

Other than the leaves and trees, the basic scenes of John Keats' poem are depicted around the circumference of this structure. A musician is playing:

Heard melodies are sweet, but those unheard
Are sweeter; therefore, ye soft pipes, play on;
Not to the sensual ear, but more endeared,
Pipe to the spirit ditties of no tone:
Two lovers are about to kiss:
Though winning near the goal--yet, do not grieve;
She cannot fade, though thou hast not thy bliss,
Forever wilt thou love, and she be fair!

And a priest is leading a heifer to sacrifice; he is being followed by some townspeople. Finding immortality in art, Keats concludes:

"Beauty is truth, truth beauty"--that is all
Ye know on earth, and all ye need to know.