The Folly was an 18th century English/French idea where a piece of architecture was built simply to decorate a garden or a field. While in Ireland some were used as a way of providing employment, in England they were mostly an indulgence of the wealthy. Many were replicas of the seven constructed wonders, famous castles, and other architecture. Some served a purpose, like a pavilion, but many were in fact, just decorative. There are, in my mind, plenty of modern equivalents.
There you stand,
once as grand as Troy.
Now your weathered alabaster
and marble refinements are greyed,
pock marked, amd worn.
Your rondels as if ravens had plucked their eyes,
the adorning orb no longer shines
yet the sun has not set on you.
You look tired
ravaged by nature from whence you came.
Even so, you stand defiant
lasting testimony to decadence past,
a vision of something grand,
or, perhaps, a flight of fantasy.
As I ascend your steps to the heavens,
I hear the crowd roar and the clash of shields,
the Trojans quake,
Such folly in a folly.