Far Flung Fortifications Fit V

Over the next nine days, 46 questions will be posed, one for each letter of the alphabet plus 20 others (There will be six one day). The 20 others appear as duplicate letters, and these duplicates spell out the name of the Roman Fortification which in CE 150 to 160 was the furthest boundary from the city of Rome, and the country that it was situated in. It is a three-word answer with eight letters in the first part of the name and four in the second part; the country has eight letters in its name.
BTW Fit, as used in the post title, is an archaic term meaning ‘a division of a song, ballad, or story’.

Twenty-one

Eucalyptus is a large genus of flowering trees and shrubs in a family with what English name?

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Twenty-two

Etesian, ghibli and pampero all types of what?

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Twenty-three

What is the capital and largest city of the Bahamas?

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Twenty-four

What is the prison in the Harry Potter films?

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Twenty-five

Which outermost major moon of Uranus is named after a mythical king of the fairies?

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Good luck! I’ll post the answers after all the questions have been asked.

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