"Aristasia is a vast Empire of seven Provinces. each province is a nation in its own right, ruled over by its own Queen; and each of these Queens owes allegiance to the High Empress herself who lives in Ladyton, the capital of the Empire. Far in the East are ancient lands, some with their own Empresses, who owe but doubtful allegiance or none to the High Empress Celestia, but of these lands we need say little, for they are hard to reach, being outside the range of technics. No aeroplane can fly there nor motor carriage run there, and many are the ancient mysteries hidden in those lands."

"From Quirinelle in the West, and the curious Isle of Infraquirinelle in the Golden Sea beyond, to the Holy city of Rayapurh, far in the East whence but few travellers have returned; from the silver Art-Neo light-planes of Novaria (ruled over by young brunette Viktoria) to the horse-carriages of Arcadia (ruled over by the mature blonde Victoria); from the bustling streets and the bright lights of Ladyton to the gentle rural serenity of Marywater or the intelectual fervour of the ancient University of Milchford, Aristasia is a land of many moods and many changes; far greater than those of your world, for it is rather as if modern New York, Pericleian Athens and ancient Byzantium were all on the same globe at the same time."

I'm honestly surprised that Aristasia is so obscure. It's a massive rabbit hole.