
J. R. R. Tolkien
Engraved after Gustave Doré
The last hidden elvish city, betrayed from inside and destroyed in a night by dragons and balrogs. A refugee column escapes through a tunnel and over a mountain pass, and one duel on a cliff buys them the time.
The most purely architectural subject in the library — a city of seven gates described in obsessive built detail, then burned. Doré's Jerusalem and his Paradise Lost both do exactly this: enormous structures rendered as real places and then made the site of catastrophe.
The Fall is also, structurally, a siege plate. He cut dozens.
The gates, in sequence, before anything happens to them. The cycle spends its first third on a city that will not exist by the end, which is how the text is weighted too.