Their targets in a tortoise cast, the foes,
Secure advancing, to the turrets rose:
Some mount the scaling ladders; some, more bold,
Swerve upwards, and by posts and pillars hold;
Their left hand grips their bucklers in th’ ascent,
While with their right they seize the battlement.
From their demolish’d tow’rs the Trojans throw
Huge heaps of stones, that, falling, crush the foe;
And heavy beams and rafters from the sides
(Such arms their last necessity provides)
And gilded roofs, come tumbling from on high,
The marks of state and ancient royalty.

Dryden’s ├ćneid
https://coldewey.cc/2011/08/their-targets-in-a-tortoise-cast-the-foes/ ┬╗