The nest of a bird of prey, as of an eagle or hawk; also a brood of such birds; eyrie. Shak. Also fig.: A human residence or resting place perched like an eagle's nest.

the lofty nest of a bird of prey (such as a hawk or eagle)

(eyrie) an eagle's nest

a domicile, especially a stronghold, in a high inaccessible place

What JB called his Clapham Common penthouse. (Webster's Dictionary defines "aerie" as "a house or stronghold built on a height.")

any habitation at a high altitude