"At last I am in the centre of the Russian hemisphere and the centre of world civilization. I am writing to you from a beautiful building, the roof of which is adorned with the name "Hotel for Air Arrivals" in giant crystal letters. Here such things are already commonplace. The more elegant homes either have roofs entirely of crystal or of white tiles covered in crystal with the name of the owner picked out in colour. At night, since the houses are well-lit inside, the shining rows of roofs make a magical sight. But it’s very convenient too."
"The Year 4338: Petersburg Letters"