Submitted for y’all’s approval:
The façade would be the “doorway” from the song but you’d see the larger building, like on the album cover, in the background (you would absolutely hear the mission bell).
The foyer/front desk would 100% have a Gothic portrait of [insert whatever Eagles lineup], maybe a plaque reading “OUR FOUNDERS”.
Was thinking of a scare, tying into the line, “mirrors on the ceiling”, that worked like the Phantom wall from last year’s Monsters house, except you have a scareactor suspended above you, revealed to be “within” the mirror.
“They stab it with their steely knives, but they just can’t kill the beast” designs itself.