Each ending in a formidable wall.
Springing from these a bridge, by easy steps,
To the high battlements an access forms,
Where the broad wall all round gives ample path,
And thus the summit of the keep is gained.
Stately that keep! a circle in its form,
Splendid and strong by art, and by position fair.
Thence, downward to the castle, leads the bridge,
And offers easy access to and fro;
For broad its path with many a shallow step,